i will never be able to get Sky reception (my house is surrounded by trees) an
Brian Butterworth published on UK Free TV  guess from your message that you don't want to be chopping down the trees, so I can think of a few possibilities, but I need to know your postcode to be sure.
1. Reception from a distant Freeview transmitter using a Class I aerial mounted on a long pole;
2. A Freesat (or fSfS) system with a dish on a long pole (ie, find a better installer)
3. Go with a cable company until digital switchover.
All questions 
In this section