Dr Spoonnfeed:say,have a qualified electrician put a surge protector on you meter loop,that will prevent this from happening again

Power failures MAY ruin electronic devices. Did in a dvd/vcr combo for me once.

Try using another, know good TV with the converter box. Your new box is probably good (but could be bad). Your TV may be toast.

Have you tried the input/aux button on your remote? Blue screen usually appears in this mode.

i had a set top box die due to a power failure last year on my birthday.got it replaced under warrenty.if its not the converter it could be a blown fuse in the tv.

OK, heres a thought: Theres nothing wrong with the TV nor with the cable converter box. Please bear with me. Since I dont know how much you may know about TVs in general and this one in particular, Im going to assume you know nothing and go from there.

This TV has several different "inputs", which are ways a signal can be transferred from its source to the TV, where it "outputs" the video image. I believe this particular TV has 5 different inputs: In descending order of the quality of the video signal, theres one S-video input (a 4-pin video connector plus red & white audio, 3 composite video inputs (3 connectors each: yellow video and red/white audio--audio connectors are the same for both s-video and composite), and one coax connector (a single screw-on connector with a little wire sticking up through the center of it).

The problem with these Apex TVs is that they always default to the Antenna/coax input first when they are restarted. Most people use the TV to display an input signal via S-video or one of the 3 composite video inputs, not the coax input, which just displays the channel numbers from 1-125 when its set to do that. If theres no signal coming into the coax input, the screen with appear blue. (If its blue, it simply means its not getting a signal via the input to which the TV is currently set.)

You have to manually select the proper input by pressing the "video" button either on the remote (lower right corner) or on "video" button directly on the TV (hidden control panel under the middle of the margin around the bottom of the TV screen. Youll have to press on the door, and the whole control panel rolls open to reveal another set of composite inputs and some buttons. The video button is the one farthest to the left.)

Anyhow, by pressing the video buttons, youll cycle through the various inputs. Assuming your cable converter box is functioning properly, powered on, receiving a signal from the cable company, and connected to the TV via an appropriate wire connected correctly, you should see the output from the cable box on the screen when you display the proper video input.

Another possibility: the power outage fried the input to which your cable box was connected on the back of the TV. If thats the case, your cable box might also be fried. You can check to see if the various video inputs on the TV are working by connecting different source inputs (like a BluRay/DVD/VCR player, video game console, video camera, etc.) to one of the other inputs and see if you get a picture when the TV is set to the appropriate inputs. (Remember, the "video" button is what selects/changes/cycles through the various video inputs.)