Firstly, make sure you have the latest firmware: v03.21.61
Get it here:
http://www.lg.com/uk/support/product...alTab=warranty
Secondly - oh dear:
From the LE PDF user manual:
...Country(Except for 32/37/42LE49**,...
Looks like the LE49** has no country setting, which means it may be UK only!
Check under Options - Country
Also try a factory reset (Options - Factory Reset) and then a new scan for channels. It SHOULD find channels, maybe you may have problem with sound if it is UK only...