@YouTubeTV I also have issues where I try to play a recorded #worldcup game from my library and it doesn't start from the beginning ... so I see the score somewhere in the middle of the game. So frustrating. ???
If you add a program to your library while an event is in progress, your recording will start from the time you added the program. If a rerun of the event airs, your partial recording will be replaced by a full episode. Hope this helps.