I'm over Goffs Oak way and it's been doing the same since five this morning . It keeps switching off with 'No signal' message and then 'Starting up' and then waiting for reboot , back to 'No signal' , 'Starting up' etc , repeat ad nauseam until eventually it returns to normal for five minutes , max , and then back to 'No signal' .
< I have of course turned everything off and on again , unplugged/replugged , blah , blah >
Not had it a fortnight . Glad I haven't put the Freeview box in the loft , yet !