Currys have a variety of refurbished TVs in stock for online sales at them moment. I bought a 22" Hitachi and 17" Logic last year for the kids rooms and I/they have been very pleased with them (and have been well used). The Hitachi has been used as a PC monitor as well. Come with a one year warranty.
Stock and range fluctuates regularly with smaller ones, 15", as well as larger ones showing from time to time.
Apologies if this has been posted previously, but haven't seen it recently