It is from this video. It is at 9 minute and 15 second.
Like, you might ask the English major down the hall who roots for a rival basketball team to read over your essay. But you are not going to ask her to seed your picks for March Madness.
Wikipedia has an article about the word seed in the context of sports:
A seed is a competitor or team in a sport or other tournament who is given a preliminary ranking for the purposes of the draw. Players/teams are "planted" into the bracket in a manner that is typically intended so that the best do not meet until later in the competition. The term was first used in tennis, and is based on the idea of laying out a tournament ladder by arranging slips of paper with the names of players on them the way seeds or seedlings are arranged in a garden: smaller plants up front, larger ones behind.
To seed means to come up with the arrangement of teams in the bracket - in other words, to “plant” the different teams.