samsung le40m86bd

[t1412]

hi fella's happy xmas to all, samsung le40m86bd kept swiching off and on replace the usual caps changed epprom went into service mode did a reset, tv comes on ok runs ok for 10 to 20 minutes then the  picture freeze's then clicks off and back on again now if connect a freeview box  through scart lead tv runs ok  would you say the tuner is causing the trouble thanks for your time

shaun