I miss spreading out a blanket on the living room floor on a Saturday morning, settling in with a "picnic" of dry cereal and cinnamon Pop Tarts and milk, and watching TV until my brain leaked out my ears. Seriously, I'd start about 7:30am, watch ALL THE CARTOONS, have a lunch break, then catch Doctor Who on PBS (they'd usually show a whole six-parter as a single 3-hour block). Or if it was one I'd already seen a couple of times, I'd switch to the local independent station and watch kaiju and kung-fu films.
Then on Sunday afternoons it was more Doctor Who, followed by Battlestar Galactica (the original "Egyptian Mormons in Space" version), followed by The Muppet Show, followed by Hee Haw.
The pretty amazing thing about all this is that we didn't have cable and this was rural Guilford County, NC. So we had a grand total of six TV channels: CBS, ABC, NBC, PBS and two independent UHF stations. Now we could have 300 channels if we wanted and not find a tenth as much stuff that I want to watch.
Also, I miss the future. By which I mean that when I was a kid, the future was still amorphous and unformed, full of exciting potential and limitless opportunity. Maybe we'd have space colonies by the time I grew up! Maybe we'd all be living in a post-apocalyptic wasteland after World War III! Maybe we'd be living in a Japanese-dominated cyberpunk dystopia! And I'd be a biomedical engineer/famous filmmaker/archaeologist/fighter pilot or something.
The future has been somewhat disappointing by contrast.