GF now wife has been to UK 7 times on a six month tourist visa over the last ten years and now on a spouse visa which I've done all myself without help from an agent. It's an easy process but if you're unsure use a reputable agent in Pattaya. I think average cost of an agent about 30,000 baht?
I use Live Net TV download from Google for free for every UK channel including Sky (good Wi-Fi required). I used Redbox TV app previously but it seems to of gone off air.