someone walk me through recording on youtube tv?

If you share the account with family, each person gets their own library, so add the show on your own profile or it won't show up for you. For sports you can search the team instead of a single game and add that, then it picks up every game it can find.

Search the show, open it and tap the + (add to library). That's it. It records every airing from then on, new and reruns, you don't set individual episodes. Storage is unlimited, recordings stay around for 9 months. The catch people hit is that some channels swap your recording for the on-demand version with ads you can't skip, so if fast forwarding is the point, that's why it sometimes won't let you.