Wharfdale tu250pvr freeview losing signal and freezing

This could be too much signal thanks to the Freeview retunes going on. Your aerial is more sensitive at some frequencies, so there's more signal power higher up the frequency range.

A simple and inexpensive diagnosis tool is a variable attenuator. The MA1620 on this page is perfect for that job:
Splitters amplified splitters and attenuators

It will give you a way to reduce the signal level at one TV without affecting the other TVs in the house.

This could be too much signal thanks to the Freeview retunes going on. Your aerial is more sensitive at some frequencies, so there's more signal power higher up the frequency range.

A simple and inexpensive diagnosis tool is a variable attenuator. The MA1620 on this page is perfect for that job:
Splitters amplified splitters and attenuators

It will give you a way to reduce the signal level at one TV without affecting the other TVs in the house.

Sorry can't help on this. Presumably you've switched off/on at mains and checked all connections secure. Would a factory reset help, see tips how to do on fixya, although not sure if you would lose library data.

freezing is a sign of poor signal , if you connect to cable , try a DVD player if the picture still freeze that mean the TV is bad and has to be returned and replaced. if the picture is good with DVD player as your service provider to give you a better service by boosting the signal

Common problem, I'm afraid!
Nothing wrong with your kit, but these should help:
http://www.quietpc.com/gb-en-gbp/products/caseaccessories/acoustifeet

call a technician

Please see the following pages

http://www.freeview.co.uk/_retuneinfo/

http://www.freeview.co.uk/_retuneinfo/_format/downloads/ChannelGuide30September.pdf

Hi Ive just bought a thomson dtr box and the picture keeps freezing .new arial new cable etc.well ive just tried a £20 freeview box and its fine good clear picture and dosnt freeze.I had a good signal when using the thompson box and its the box load of rubbish taking it back to shop.

This wont be very helpful, but, it is worth noting that although you may think you bought a "Wharfdale" product, i'm afraid you haven't. Chan bros. bought the rights to the name some time ago and so what you have is a cheap non-descript chinese import. sorry.

The Wharfdale Machine that has Freeview has an F on the end ie vdrhd400f. It may be yours is an analogue version. Always possible that you can use the TV as an output via a scart to record what you are watchin