Misfits is a gem (is it still available in total on 4oD?)
Charlie Jade, (http://www.youtube.com/watch?v=OjApeQGPl-k) scifi series filmed in Cape Town, reasonably opens the mind and the bad guy becomes the best character for me.
Hyperdrive (http://www.youtube.com/watch?v=jeqcVbJqxR0) (British comedy series in the vein of Red Dwalf) Bit childish really though.
No Heroics – (http://www.youtube.com/watch?v=w3zpMTKvvgk) adult, but a bit childish.
There are few series that are perfect so it’s hard to recommend anything other than SG-1. Shows that didn’t quite get there: Primeval, Eureka, Warehouse 13, The Last Train, Ultraviolet. If you move away from scifi then it’s got to be Bones, Psych and Mentalist.
Here’s a series (watch in order) of funny adult themed Chinese 7up commercials if you haven’t already seen them, with a strong element of time travel:
1) http://www.youtube.com/watch?v=WH-8FFOdh5o
2) http://www.youtube.com/watch?v=JVpesget9bU
3) http://www.youtube.com/watch?v=o0cxuEv9VKk