Help with sound problems on plasma TV please?

Question

I have a 32 inch plasma with external freeview box. I get a background buzzing noise on certain pictures. The most obvious is when there are captions on the screen such as breakfast TV, news channels or football scores. Not restricted to those though. It will buzz on a particular scene within a programme with no captions and stop when the scene changes only to start again on the next. No problem when watching DVD's though. Driving me bonkers as it is very annoying.

Answer 1

It might be an insufficient (Weak) areal signal.

Answer 2

Sounds like either a poor signal reception (get a better aerial) or the lead running from your freeview box is past it's best. Try a new, better quality one.