We had a power outage today and our tv won't turn on - there is a green flashing light on the front panel and that is it.

https://community.sony.com/t5/Television-General/Red-light-blinks-6-times-tv-won-t-come-on/td-p/47107

Likely has bad 1000UF capacitors on DM module. this will prevent rebooting.

Try to I unpluged the power, push volume and channel down, pluged power again

While it's flashing unplug your TV from the main power source for 15 seconds,Then press Valume Up and Channel Up, while holding it plug the TV back in, you should see the TV Turn on. How to Reset Your Sharp LCD TV TV Repair

most likely a bad power supply and boards or service info for these sets is hard to come by. Not a do it yourself fix for most people.

cHECK THE ps IF GOOD CHECK THE mobo COMMN BECOME DEAD AFTER POWER SURGE.

Hello
make a System Reset process. To do this;
If the TV will not respond to either the remote control or the front panel controls and/or will not power Off, press the SYSTEM RESET button with a pointed item like the end point of a paperclip. The TV will turn Off and the TIMER light will flash quickly for about one minute. When the TIMER light stops flashing, you may again turn on the TV. The changes you made the last time the TV was on before you used the SYSTEM RESET button may be lost, however, the changes that were previously saved are not lost.
OK.

Good chance it took out the str regulator in the power supply.

Try using a different outlet, the outlet or the tv may have been damaged in the surge. In the case of the tv contact the manufacturer and see if it's still under warranty. There may also be a way to 'reset' the tv by holding the power button down, try looking in the manual or calling customer support. In the future use a surge protector, many of today's electronics are still sensitive to power surges, older tv's were more resilliant than today's in this regard.

This unit, when first plugged in or after power interuption takes 70 to 90 seconds for the digital module to boot up. During the time the LED blinks green and the set will not respond to anything. After the appropriate amount of time the blinking should stop and the set should operate normally. If the blinking never stops then you have to have the Digital Module repaired.

Did you try unpluge from the wall, and repluging back after 10 min.
Also run the self diagnosis by pushing the menu and device buttons on the front and let me know the code?

Thanks
K