I'm interested in watching the best TV the UK has to offer. What would you recommend?

So far I've seen:

Ashes To Ashes (2008)
Black Books (2000)
Derek (2012)
Extras (2005)
The Fall (2013)
Fawlty Towers (1975)
Fresh Meat (2011)
Game Of Thrones (2011)
Garth Marenghi's Darkplace (2004)
The IT Crowd (2006)
Life On Mars (2006)
The Office (2001)
Orphan Black (2013)
Peep Show (2003)
Pramface (2012)
The Prisoner (1967)
Rome (2005)
Sherlock (2010)
Spaced (1999)
State Of Play (2003)
The Thick Of It (2005)

I have no preference.

Blackadder.

Do it.

Never watched Monty Python's Flying Circus? or Blackadder? If not you're definitely in for a treat.

Oh, and Doctor Who, Obviously.

Doctor Who and Red Dwarf.

Blackadder would qualify I guess :)

Really liked 'In the Flesh', although don't expect something fast paced or with deep intrigue, it's mostly about the family. Lost some tears on that one :)

"Four years after the Rising, the government starts to rehabilitate the Undead back into the society including teenager Kieren Walker, who returns home to his small Lancashire village to face a hostile reception as well as his own demons. "

Benny Hill!

Lol @ Fawlty Towers, those were good. I think we had those on Betamax back in the day xD

I see you already list Sherlock above. Agatha Christie's Poirot, Agatha Christie's Marple, Jekyll, and Covington Cross perhaps?

Blackadder

Since all the famous ones already got mentioned I'm gonna give a shout out to something more obscure- Garth Marenghi's Darkplace.All 6 epizodes are on youtube and it would only take you an hour to witness this gem of comedy.

http://www.youtube.com/watch?v=9T4-N1jRuQA

If an old sci-fi dystopian bleak future sounds like your thing, Blake's 7. Sadly, I don't think it has ever been available in NTSC, but I did get hold of regionless PAL DVD's I could watch on my computer.

Only Fools and Horses

Also, be sure to check out Black Mirror. It's actually a mini-series, although not really in the traditional sense, seeing as how each of its 6 episodes (3 have been released per season so far) presents its own story, takes place in a different setting, and has its own cast, which results in inconsistencies quality-wise, but it's an incredibly well made series, and when it's really good it's also intelligent and thought-provoking.