Power surges can come from many sources and I have found that even modern televisions are prone to damage. Being a repair technician I see my share of power related problems. Most television power supplies will have some form of surge suppression built in. But, in practice it has been little help. Televisions have two primary entrance points for a power surge; one is through the power cord, and the other is through the antenna connector(s), other possible entrances but not often causing a power surge, will be through the aux inputs.
