You can watch Supernatural, it´s a really good show and is not ended.
And Alec from Dark Angel is in it <3

true blood its a vampire show its pretty good if u live in america its on hbo i think if you live here in england its starting soon on fx il try to think of some more 4 u but my minds went blank hope this helps

I agree with Rosegirl94 supernatural is one of the best since dark angel. You could try NCIS or NCIS: Los Angeles ths fall they both come on the same channel as Ghost Whisperer =}

* Royal Pains
* Mental
* Drop Dead Diva
* Castle
* Nurse Jackie

* Smallville (E4)
* Psych (Sci-Fi/Hallmark)
* Dollhouse (Sci-Fi)
* Lie to Me (Sky)
* The Listener (FX)
* Merlin (BBC)

* Warehouse 13 (Airs 8th Sept in UK on Sci-Fi)
* Legend of the Seeker (Airs 13th Aug in UK on Sci-Fi)

* Vampire Diaries (Airs Fall in US)
* Cougar Town (Airs Fall in US)

* My own worst enemy (Cancelled)
* Hex (Cancelled)
* Tru Calling (Cancelled)
* Sarah Connor Chronicles (Cancelled)
* The Dresden Files (Cancelled)
* Firefly (Cancelled, then continued as movie 'Serenity')

Like me because you live in the UK you will have to find these online because a lot of them have not air yet (e.g. The top 5 shows) But they are worth looking for because they're really good to watch. Their are a lot of good shows on Sci-Fi, but be warned, 9/10 their movies are crap lol.
Hope these help :D

The new V series started this November. It's based on the old show about an alien race that takes over Earth, but it's a little different. I didn't really like the old one, but the new one doesn't look quite as bad.

Then again, they've only shown the pilot so far, so what do I know?