You're best bet is to buy a wideband aerial and point roughly North East and get a signal from Sudbury. You might need a masthead amplifier though, to make the signal better.
Although, unless you already receive it, you could get Anglia West and Look East Close Up from Sandy Heath which should be roughly North and I can almost guarentee that you will pick up from that transmitter.
Visit:
http://www.wolfbane.com/cgi-bin/tva.exe? and enter in your OS grid reference which can be found from
http://www.streetmap.co.uk
Enter your post code and then when you've found it click near the bottom where is says, click here to convert these co-ordinates. Its the Landranger Grid (LR) co-ordinate that you want. Then you can enter that into the UK analogue TV reception page.
It then gives you a bearing, and a distance from the transmitter. All being well, you should be able to pick up from any of those transmitters listed. Although, you might not get the ones nearer the bottom. They are in VERY IDEAL conditions.
Remember, to receive these you need a wideband aerial pointing in the right direction and possibly a masthead amplifier, I would recommend one anyway, improves your signal a lot!
Remember you might not receive from a few of them, even if they are close because of natural features and the calibration of the transmitter, but I think you will be surprised what you can get.
Finally, I would recommend an aerial rotator. Just fir your aerial to it and then you can turn the aerial from inside your house, and it means you only need one wideband aerial.
