To request a new leaderboard, the video must be your own gameplay.
My tip is to check out the guides section for each game you’re interested in. Popular games usually have good tutorials available.
This page has a link to the download.
I’m currently grinding for WR in this Plants vs Zombies category extension.
https://www.speedrun.com/pvzce/level/Its_Raining_Seeds?h=x10&x=l_ywexozr9-w208vrvd
My sum of best is more than 9 minutes below the current WR, so I know I’m capable of beating it. I just need a run where I both execute well and get great RNG.
I just use an average HDTV. I’ve never heard of people needing to look for anything particular for Switch, given that HDMI is basically universal for TVs in 2023.
Go the board and click submit run. Fill out the information, including a url to the video recording.