Of all time? I tend to watch older shows, but here's a few:
Twilight Zone, original series
Are You Being Served?
The Tomorrow People (early series)
any BBC nature documentary with David Attenborough hosting it
GAME OF THRONES!
Used to love Grey's Anatomy (still do, really) but it went to shit in the season where Derek died. It wasn't his death that bothered me, but whoever the fuck was writing/ directing that season made it cheesy AF and just started using basic white bitch filming techniques. Like weird, random, pointless camera angles.
I like Supernatural, but it just got repetitive, and those fake ass voices got REAL old, but Ackles can take me raw any day of the week ;D xD
Currently watching Under the Dome, which subscribes to the "white knight on a high horse" plot line, which sucks ASS, but hey, it might get better xD (probably not)
Vikings, always fun to watch.
The Magicians, rather enjoy it, though it started off as a little bit of a basic white bitch show, it got better xP
I rarely watch shows, I mainly watch YouTube videos - certain shows I do watch
• Pokemon (Japanese language, hate the English dub)
• The Foxbusters (no longer on TV, still have some saved episodes on VHS)
• Beavis and Butthead (still have all the episodes on VHS)
• Puella Magi Modoka Magica
• Hell's Kitchen
• Kitchen Nightmares
Survivor, it's the only show I watch on TV anymore really, I don't have the patience to keep up with anything else on TV other than maybe looking in occassionally if mom is watching something interesting.
Erm.. I can put Forensic Files on the list, it's an old old favorite.
Cops, other crime shows...
I love TONS of cartoons...
some top favorite of those would be
Steven Universe, Gravity Falls, Transformers (the 80s cartoon), Grim adventures of Billy and Mandy,
I can actually name several more, but I'll leave these as my top picks.
Just about everything on Animal Planet...
Ocean Planet, Planet Earth, Too Cute, Emergency Vets, Monster Quest, bla bla bla can't name 'em all.
Lots of Anime.. I guess my fave right now would be One Piece
also love Gurren Laggan, Baccano, Mushishi, ugh several others again. Eh.
What I watch the most though, are cartoons (including anime), I love animation.