Bigpockets (and Boffer) are selling a slightly antiquated but well priced Elonex 37-inch LCD Monitor for only £300.
The device is the cheapest 37-inch TV/LCD on the market and can display 1366x768 pixels (that's 720p).
Although it only has an Analog tuner, it shouldn't be an issue since it has not one but two HDMI ports as well as a VGA port and Component HD port as well.
With a diagonal screen size of 94cm and a brightness of 500 cd/m2, this should serve you well. Add in a contrast ratio of 1200:1 and a response time of 8ms and you should be pretty happy.
It has two 10w speakers supporting Virtual Dolby Sound. At 30Kg, it is a bit heavy and will surely require two people to be manned.
The Elonex TV comes with a one year on site warranty and is a brand new liquidated stock.
Buy it while stock lasts at Bigpockets for £300.