Most people won't be wanting a 3m on their roof or in their garden here in Turkey - so won't be getting BBC1, ITV, Ch4, Ch5. A 1.5m dish is another option and doesn't look that big up on the roof.
Ok, Here is a list of channels you can receive with a sky box, sky subscription and 1.5m dish. It's a while since I used a 1.5m dish so this is as I remember, there are possibly more.
I have left out all the God, Shopping channels.
Several music channels and lots of digital radio too - most notably BBC Radio 2, Radio 4, Talksport, Virgin Radio, Capital Radio
Channels marked * are also available with no subscription, just a £20 Sky viewing card.
Sky 1, 2 (3* - possible/borderline)
UKTV Gold +1
Sky Sports 1,2,3 (assuming subscription)
Sky Movies ALL (assuming subscription)
Men & Motors* (borderline)
Hollywood TV
Channel M*
Real Madrid TV* (in English)
Wine TV*
Sky News*
CNN (Borderline)
Euro News*
Pop* (Kids)
TinyPop* (Kids)
Pop Girl (Kids)
ESPN Classic
UKTV Food
National Geographic
UKTV History
UKTV G2+1
Paramount Comedy 1
Paramount Comedy 1 +1
Paramount Comedy 2
Sci-Fi
Sci-Fi +1
UKTV Drama +1
E4 (manually tuned)
Hallmark
Biography Channel
FX
Legal TV
UKTV Style +1
Eurosport
Sky Sports News (borderline)
Bloomberg News
Fox News
TCM
Animal Planet +1
UKTV Docs +1
UKTV People
Cartoon Network
Jetix
Nick Jr
In my opinion, although you don't get BBC/ITV, there is enough in there to beat Digiturk hands down for UK programmes.