If the video is decent (a title which specify the event, some replays for the qualifications, all the replays for the finals with the scores, the name of the winner at the end...) at least 2K.
If the video is awesome (all the replays in the video, the results, the scores, different shaders...) 5K or 6K.
You can also take screenshots from the replays. Around 200Tcs per published screenshots (if they're good enough).
They're many ways to help TN... Text, pics, videos, rants...