It means that any given generation loves to rag on the one below them even though they hate it when the generation above them does the exact same thing.
Sure, there’s a big difference: the average age of the person we’re talking about. Everyone knows if it’s something a boomer likes it’s good, and if it’s something a millennial/Gen Z likes it’s bad.
With the DVR he’d also understand the concept of using the remote to fast forward commercials. My 4 year old knows how to do it by herself.