Bush 26inch Digital LCD TV. K1487RA007430, 4 days ago lost 30 digital channels,now have 81 digital, 14 analogue, have update scanned several times without any luck, also instructions on screen to re-tune 7th March, Menu, solutions, after that I am unable to follow instructions. My TV is 4 years old, surely I will not have to purchase new set.

Please can you help?

Gill