This is literally every SMB1-related submission I could find.

Included:

At time of writing, there are 6900 (nice-hundred) submissions to TASvideos. 225 of them are listed below. This means that one in every 30.67 submissions is SMB1-related. This equates to 3.261% of all site submissions. It's entirely possible I missed some, duplicated some, or mistyped some. There's 225 OF THEM, AFTER ALL,

#5954: AlexPivot's NES Super Mario Bros. "warpless" in 21:40.03
#5814: Ondrasek741's NES Super Mario Bros. "warps, cheats" in 03:52.72
#6286: superetro64 & sullyrox's NES Super Mario Bros. in 04:58.72
#6539: sushiw097's NES Super Mario Bros. "warps" in 05:25.38
#3507: mat1er's NES Super Mario Bros. "no coins" in 05:30.21
#6540: sushiw097's NES Super Mario Bros. "glitchless" in 05:07.36
#5377: I_like_bleach_64's NES Super Mario Bros. "PAL" in 05:13.04
#1311: AGGRESSiON's NES Super Mario Bros. "warps, walkathon" in 07:02.20
#6055: RewordGrey's NES Super Mario Bros. "warps, walkathon" in 07:18.54
#5360: I_like_bleach_64's NES Super Mario Bros. "PAL" in 05:20.24
#5359: I_like_bleach_64's NES Super Mario Bros. "PAL" in 04:25.43
#6056: RewordGrey's NES All Night Nippon Super Mario Bros. "glitchless%" in 05:32.80
#4394: kusoman's NES All Night Nippon Super Mario Bros. in 04:59.62
#4396: P0rtalFTW's NES Super Mario Bros. "Quests A and B" in 11:28.75
#2789: some_pickles's NES Super Mario Bros. "no coins" in 05:11.52
#6206: kierio04's NES Super Mario Bros. "pacifist, no coins" in 05:11.67
#6030: STC's NES Super Mario Bros. "warps, human theory" in 07:15.57
#6202: kierio04's NES Super Mario Bros. "Quests A and B" in 10:11.43
#5342: dhxo's FDS Super Mario Bros. "-3 stage ending, walkathon" in 03:33.60
#5455: thegoldfish's NES Super Mario Bros. "1-1" in 00:31.63
#5632: wasapi's NES Super Mario Bros. "backward jumps only" in 05:36.16
#6456: zdoroviy_antony's NES Super Mario Bros. "warps, no L+R" in 04:57.54
#6371: pillow's FDS Super Mario Bros. "-3 stage ending, human theory" in 02:50.69
#5755: Nobodycallsmetubby's NES All Night Nippon Super Mario Bros. "warps" in 05:26.71
#5918: TASandTAF's NES Super Mario Bros. "warpless, no pipes" in 1:29:03.88
#4708: Alex76FR's NES Super Mario Bros. "warps, glitchless, walkathon" in 07:10.31
#6552: supremayro420's NES Super Mario Bros. "warps" in 05:06.48
#2413: MrIvan97's NES Super Mario Bros. "PAL" in 04:24.92
#6378: jakanz's NES Super Mario Bros. "fastest death" in 00:07.37
#6018: STC's NES Super Mario Bros. "warps, human theory" in 05:01.49
#3100: sirstarmagic's NES Super Mario Bros. "fast" in 00:35.13
#6022: JustAndreh_'s NES Super Mario Bros. "warps" in 05:07.16
#5564: KnucklesMaster368's NES VS. Super Mario Bros. "warps" in 10:14.92
#5523: OttuR's NES Super Mario Bros. "Minus World" in 01:15.06
#6485: DarkMatrix's NES Super Mario Bros. "warps" in 04:56.96
#5389: sullyrox's NES Super Mario Bros. "warps, walkathon" in 07:16.50
#4381: kusoman's NES Super Mario Bros. "glitchless" in 06:00.99
#6071: thegreatbup's NES Super Mario Bros. "AISSON" in 05:52.69
#6542: sushiw097's NES Super Mario Bros. "pacifist" in 05:12.19
#5631: ace7153's NES Super Mario Bros. in 06:05.37
#6262: rexifer's NES Super Mario Bros. in 05:21.22
#3382: hellfire's NES Super Mario Bros. in 04:57.14
#5659: AcolPavel's NES Super Mario Bros. in 05:02.37
#4032: Buddybenj's NES Super Mario Bros. in 00:53.36
#1799: Mr_Sweed's NES Super Mario Bros. "PAL" in 05:17.54
#6053: RewordGrey's NES Super Mario Bros. "warps" in 05:23.42
#3566: gab950912's NES Super Mario Bros. in 05:45.87
#5146: Unknown394's NES Super Mario Bros. in 05:03.48
#3055: sirstarmagic's NES Super Mario Bros. in 06:59.29
#4467: LaryDLobster's NES Super Mario Bros. in 05:50.22
#5646: DarkAnturian's NES Super Mario Bros. in 13:58.34
#1983: ChaucersSquire's NES Super Mario Bros. "PAL" in 05:22.66
#598: yagz's NES Super Mario Bros. "warps" in 05:09.28
#1835: Mr_Sweed's NES Super Mario Bros. "PAL" in 05:14.72
#2355: sonicmason's NES Super Mario Bros. "warps" in 05:49.94
#616: yagz's NES Super Mario Bros. "warpless" in 19:27.68
#5985: trungvn's NES Super Mario Bros. "warps" in 05:34.47
#1624: WiiS360's NES Super Mario Bros. "0-1" in 00:46.12
#6658: acerxt_'s NES Super Mario Bros. "warps" in 04:57.41
#2374: ZENEO9's NES Super Mario Bros. "PAL" in 05:42.83
#3212: waymuu's NES Super Mario Bros. in 05:24.73
#3298: hellfire's NES Super Mario Bros. in 05:13.90
#4002: inakilbss's NES Super Mario Bros. "warps" in 05:13.27

#471: pom's NES Super Mario Bros. "warps" in 04:59.60
#740: pom's NES Super Mario Bros. "warps" in 04:59.93
#436: Phil's NES Super Mario Bros. "warps" in 05:00.22
#432: Mana.'s NES Super Mario Bros. "warps" in 05:03.68
#1922: HappyLee's NES Super Mario Bros. "warps, walkathon" in 06:54.30
#1329: Phil's FDS Super Mario Bros. "-3 stage ending" in 02:58.20
#435: Mana.'s NES Super Mario Bros. "warps" in 05:01.27
#2362: klmz's NES Super Mario Bros. "warps" in 04:57.33
#612: Bisqwit's NES Super Mario Bros. "sidestroller" in 07:02.25
#1796: klmz's NES Super Mario Bros. "warps" in 04:58.53
#1891: klmz's NES Super Mario Bros. "warps" in 04:58.18
#1973: HappyLee's NES Super Mario Bros. "sidestroller" in 06:53.52
#2159: HappyLee's NES Super Mario Bros. "warps, walkathon" in 06:53.13
#2354: HappyLee's NES Super Mario Bros. "warps, walkathon" in 06:47.20
#2384: HappyLee's NES Super Mario Bros. "warpless" in 18:41.70
#2175: HappyLee's FDS Super Mario Bros. "-3 stage ending" in 02:46.30
#1223: Ryosuke's NES Super Mario Bros. "warps" in 05:07.63
#1267: Bisqwit's NES Super Mario Bros. "warps" in 05:15.65
#2095: HappyLee's NES Super Mario Bros. "warpless" in 18:48.82
#1965: HappyLee's FDS Super Mario Bros. "-3 stage ending" in 02:46.35
#1264: Michael_Fried's NES Super Mario Bros. "warps" in 05:08.50
#1987: HappyLee's NES Super Mario Bros. "Luigi" in 05:06.47
#1962: HappyLee's NES Super Mario Bros. "warpless" in 18:49.65
#2330: adelikat's NES Super Mario Bros. "warps, walkathon" in 06:48.59
#2344: adelikat's NES Super Mario Bros. "warps, walkathon" in 06:47.66
#142: Michael_Fried's NES Super Mario Bros. "warps" in 05:03.73
#2348: HappyLee's NES Super Mario Bros. "warps, walkathon" in 06:48.23
#2335: HappyLee's NES Super Mario Bros. "warps, walkathon" in 06:48.02
#2347: HappyLee's NES Super Mario Bros. "warps, walkathon" in 06:48.27
#2160: HappyLee's NES Super Mario Bros. "sidestroller" in 06:51.03
#1263: Michael_Fried's NES Super Mario Bros. "warps" in 05:07.95
#1613: Naohiro19's SNES Super Mario All-Stars: Super Mario Bros. in 06:23.98
#5912: warmCabin's NES Super Mario Bros. in 09:01.18
#1265: Bisqwit's NES Super Mario Bros. "warps" in 05:13.05
#1266: Bisqwit's NES Super Mario Bros. "warps" in 05:15.60
#1222: Michael_Fried's NES Super Mario Bros. "warps" in 05:05.90
#3801: TheKDX7's GBC Super Mario Bros. Deluxe in 00:49.18
#143: Yy's NES Super Mario Bros. "warpless" in 19:26.60
#437: Phil & Genisto's NES Super Mario Bros. "warps" in 04:59.92
#391: Michael_Fried's NES Super Mario Bros. in 02:44.50
#3802: TheKDX7's GBC Super Mario Bros. Deluxe in 04:56.63
#387: Michael_Fried's NES Super Mario Bros. in 11:34.00
#2753: MUGG's NES Super Mario Bros. "PAL" in 04:56.48
#476: Phil & Genisto's NES Super Mario Bros. "warps" in 04:59.95
#5657: Nothembur's Genesis Super Mario Bros (Unlicensed) in 17:04.07
#373: Vegetable's SNES Super Mario All-Stars: Super Mario Bros. in 05:23.90
#3861: KFCMARIO's GBC Super Mario Bros. Deluxe in 04:56.86
#5617: HappyLee's NES Super Mario Bros. "PAL" in 04:55.16
#4614: negative_seven's GBC Super Mario Bros. Deluxe in 04:55.99
#6378: jakanz's NES Super Mario Bros. "fastest death" in 00:07.37
#2964: HappyLee's NES Super Mario Bros. "warps" in 04:57.31
#5426: sullyrox's NES Super Mario Bros. "fastest softlock" in 00:58.87
#6125: HappyLee's NES Super Mario Bros. "warpless" in 19:26.35
#5862: MrWint's NES Super Mario Bros. "warpless" in 18:37.46
#3078: Aglar's NES Super Mario Bros. "8955 frames" in 02:29.00
#2353: andrewg & adelikat's NES Super Mario Bros. "warps, walkathon" in 06:47.38
#3434: HappyLee's NES Super Mario Bros. "warpless" in 18:38.23
#5191: Unknown394's NES Super Mario Bros. "short Fire Mario" in 10:53.52
#4383: scrimpeh's NES Super Mario Bros. "glitchless" in 05:08.51
#4382: adelikat's NES Super Mario Bros. "glitchless" in 05:09.67
#1899: Bisqwit's NES Super Mario Bros. "sidestroller" in 06:55.18
#4332: agwawaf's NES Super Mario Bros., 2, The Lost Levels & 3 in 08:49.78
#2420: klmz's FDS Super Mario Bros. "-3 stage ending" in 02:46.28
#4017: got4n & negative_seven's GBC Super Mario Bros. Deluxe in 04:56.61
#3838: got4n & negative seven's GBC Super Mario Bros. Deluxe in 04:57.42
#468: Phil & Genisto's NES Super Mario Bros. "warpless" in 18:59.28
#1797: Phil's FDS Super Mario Bros. "-3 stage ending" in 02:48.12
#6336: lexikiq's Linux Mari0 "acid trip" in 01:13.28
#5507: Nobodycallsmetubby's SNES Super Mario All-Stars: Super Mario Bros. in 05:32.97
#486: Phil & Genisto's NES Super Mario Bros. "warpless" in 18:57.73
#5895: ThunderAxe31's NES Super Mario Bros. "standless%" in 05:13.95
#3415: TheKDX7's GBC Super Mario Bros. Deluxe "warpless" in 01:32.48
#6899: Wade07's NES Super Mario Bros. "no left button" in 10:56.87
#3104: agwawaf's NES Super Mario Bros., 2, The Lost Levels & 3 "Quad-run" in 10:39.75
#3416: TheKDX7's GBC Super Mario Bros. Deluxe "warpless" in 18:15.42
#4384: Ambiance_69's NES New Super Mario Bros 5 "warpless" in 18:40.24
#2361: adelikat, klmz & andrewg's NES Super Mario Bros. "warpless" in 18:44.48
#2317: HappyLee's NES Extra Mario Bros in 19:24.68
#2908: HappyLee's NES Super Mario Bros. "lowest score" in 14:32.80
#3315: Mars608's NES Super Mario Bros. "warpless, walkathon" in 25:30.05
#3443: TheKDX7's GBC Super Mario Bros. Deluxe "You vs. Boo" in 01:32.48
#3539: TASeditor's NES Super Mario Bros. "non-stop pause" in 00:39.27
#3542: The_Mario_with_Famtasia's NES Super Mario Bros. "fastest death" in 00:05.36
#3094: Patryk1023's NES Super Mario Bros. "over 9000 frames" in 02:30.00
#3610: KFCMARIO's GBC Super Mario Bros. Deluxe "You vs. Boo" in 04:53.98
#3444: TheKDX7's GBC Super Mario Bros. Deluxe "You vs. Boo" in 05:00.23
#4242: SierraNTS's SNES Super Mario All-Stars: Super Mario Bros. "Jump Backwards." in 05:50.82
#3703: TheKDX7's GBC Super Mario Bros. Deluxe "You vs. Boo" in 04:53.33
#4563: IgorOliveira666's SNES Super Mario Bros. Enhanced "warps" in 11:02.71
#5975: HappyLee & Mars608's NES Super Mario Bros. "warpless" in 18:36.78
#3701: dragonmiles18's NES Super Duper Mario Bros. "0-1" in 00:58.90
#4618: Baddap1's NES Bowser's Jumping Challenge in 07:54.25
#5593: Jhynjhiruu's Windows Normal Super Mario Bros. ""Any/100%"" in 02:18.78
#3099: DS13's NES Superfast Mario Bros. "Warped" in 01:11.67
#3417: TheKDX7's GBC Super Mario Bros. Deluxe "challenge mode " in 28:28.57
#2393: VladimirContreras's NES Super Mario Bros - Terror of the Night (SMB1 Hack) in 05:36.71
#6526: kierio04's NES New Mario Bros. "skips" in 10:17.58
#3092: Patryk1023's NES Super Mario Bros. "fastest game over" in 00:22.21
#4034: got4n & negative_seven's GBC Super Mario Bros. Deluxe "You vs. Boo" in 04:54.24
#3097: sirstarmagic's NES Superfast Mario Bros. "playing" in 04:11.62
#4409: Mars608 & HappyLee's NES Super Mario Bros. "warpless, walkathon" in 25:19.23
#1289: S@G's SNES Super Mario All-Stars: Super Mario Bros. in 05:20.42
#2445: MrOmicron's NES Super Mario Rs by RRX (SMB1 Hack) in 03:09.24
#5836: Mars608, chatterbox & HappyLee's NES Super Mario Bros. "all items" in 19:50.04
#3093: NitroGenesis's NES Super Mario Bros. "fastest game over" in 00:00.57
#4834: TEHH_083, HappyLee & CuteQt's NES Super Mario Bros. "maximum coins" in 26:10.25
#3556: Brandon's NES Super Mario Bros. "minimum presses" in 05:48.04
#3534: Brandon's NES Super Mario Bros. "minimum presses" in 05:46.33
#6774: Baddap1's NES Extra Mario Bros. "bad ending" in 05:26.78
#4619: Baddap1's NES Super Mario Unlimited in 13:03.46
#5865: ItsameMario203's NES Superfast Mario Bros. "75%" in 01:57.34
#3095: FerretFaucet's NES Super Mario Bros. "fastest game over" in 00:25.42
#2426: HappyLee's FDS Super Mario Bros. "-3 stage ending" in 02:44.61
#4659: MarioUniverseZone's NES Super Mario Forever in 02:31.20
#4247: Denial140, negative_seven & chatterbox's NES Superfast Mario Bros. "warps" in 01:09.07
#6711: Asumeh's NES Super Mario Bros. "8-4%" in 01:20.20
#5723: KinsleU's SNES Super Mario All-Stars + Super Mario World "All Four" in 34:14.47
#4672: MarioUniverseZone's NES Super Mario Unlimited "warps" in 11:57.68
#1814: mushroom's NES Hard Relay Mario in 10:47.80
#1819: mushroom's NES Hard Relay Mario in 09:56.98
#3945: NitroGenesis's SMS Super Boy II in 05:55.24
#6500: EZGames69 & Memory's SMS Super Boy II in 05:51.47
#1455: Mr_Sweed's NES Air in 05:13.62
#3612: kristmortal95's SNES Donkey Kong Country "All Levels" in 46:29.25
#1953: HappyLee's NES Air 2 in 06:23.08
#6328: lexikiq's Linux Mari0 "no portals" in 02:06.92
#2841: KFCMARIO's SNES Super Mario All-Stars: Super Mario Bros. "Warpless" in 19:52.33
#5475: Jhynjhiruu's NES Late for Work in 01:40.43
#1828: mushroom's NES Air 2 in 08:03.37
#1827: mushroom's NES Air 2 in 07:42.93
#6099: lexikiq's Linux Mari0 "Portal mappack, 1 player" in 03:23.78
#2944: Aglar & Randil's NES Astérix in 05:43.05
#6225: lexikiq & Masterjun's Linux Mari0 "Portal mappack, 4 players" in 02:54.80
#6524: kierio04's NES SMB1 Hard Type "warps" in 05:23.87
#6113: lexikiq & Masterjun's Linux Mari0 "Portal mappack, 1 player" in 03:05.23
#5374: Kabuto's C64 The Great Giana Sisters in 10:11.52
#6434: Masterjun, lexikiq & dwangoAC's Linux Mari0 "warps" in 01:06.93

#3912: adelikat's FDS Super Mario Bros. 2 in 115:17:46:40.00
#434: Terimakasih's SNES Super Metroid "any%" in 47:50.93
#1803: klmz's FDS Super Mario Bros. 2 in 08:09.23
#1426: Phil's FDS Super Mario Bros. 2 "Luigi version" in 08:20.98
#464: Bisqwit's FDS Super Mario Bros. 2 in 08:20.58
#141: Bisqwit's FDS Super Mario Bros. 2 (J) "warps, Mario" in 08:24.37
#459: Bisqwit's FDS Super Mario Bros. 2 in 08:21.43
#1283: Bisqwit's FDS Super Mario Bros. 2 in 08:27.55
#2406: HappyLee's FDS Super Mario Bros. 2 in 08:06.96
#5394: HappyLee's FDS Super Mario Bros. 2 in 08:04.83
#3287: HappyLee's FDS Super Mario Bros. 2 in 08:05.28
#1284: Michael_Fried's FDS Super Mario Bros. 2 in 08:25.15
#483: Phil & Genisto's FDS Super Mario Bros. 2 "Luigi version" in 08:29.82
#1403: Phil & Genisto's FDS Super Mario Bros. 2 in 08:12.25
#1800: Deign's FDS Super Mario Bros. 2 "Luigi version" in 08:17.83
#6898: FractalFusion's FDS Super Mario Bros. 2 "maximum lives" in 00:21.52
#2843: FVDTSUYOSA's FDS Super Mario Bros. 2 "warpless" in 21:26.92
#681: Phil & Genisto's FDS Super Mario Bros. 2 in 08:21.37
#3782: HappyLee & KFCMARIO's FDS Super Mario Bros. 2 "warps, Luigi" in 08:13.77
#3833: KFCMARIO's FDS Super Mario Bros. 2 "Luigi and Warpless" in 25:22.51
#6364: DMTASpeedruns's FDS Super Mario Bros. 2 "warpless" in 21:23.54
#6394: DMTASpeedruns's FDS Super Mario Bros. 2 (J) "warpless" in 21:16.02
#2358: sonicmason's NES Super Mario Bros. 2 in 09:32.22
#5570: HappyLee's SNES Super Mario All-Stars: The Lost Levels "warpless" in 34:36.61
#3258: Soig's SNES Super Mario All-Stars: The Lost Levels "Luigi Version" in 35:09.67