The surge protection built into the typical power strip is primitive and the component(s) that provide protection by conducting (shorting) between the hot and neutral degrade with repeated activation.
They are worth much when new and after having switched a few times, the voltage breakdown point moves uprange and they become less effective.
Most more expensive electronic systems have better internal protection than that afforded by the majority of the power strips and there might be an internal fuse that blew that can be replaced.
I'm afraid however that the main power supply has taken the hit.
The supply is normally built on a separate boardsince these are often out-sourced by set manufacturers. Unplug your set overnight to allow potentiallyhazardous voltages to discharge, remove the lower back panel of the set so you cansee the guts.Look for a smaller board with larger parts onit; some cylindrical (capacitors), others block-like and relatively large(chokes and transformers).You should also see a relationship between theboard and the incoming AC. Check the board for a label or if not present, astamped-on number.Call the manufacturer's service center with yourTV model number and the number found on that board and inquire aboutrepair/replacement costs; if both are offered, they won't be that muchdifferent.If you must buy a new board, don't dispose ofthe failed one as there are smaller companies that can repair it for less thanthe mfr. and then keep it as a spare as this problem will likely arise again.
If you reside in an area of frequent electrical storms, I highly recommend you install or have installed a 'whole house' surge protector.
These are either installed in an existing main breaker box or in an auxillary box next to the breaker.
The device and installation labor fall between $150 - $300 US and have an included insurance policy that covers losses of 10 or 25 thousand dollars.
This Google link will bring a large number of links to retailers of these: