I purchased a Mitsubishi MODEL WS-55517. I have no remote or manual. I have the U-Verse box hooked up to the TV via component wires into the INPUT 1. I have tried all other inputs and several channels. I have the TV tuned to channel 3 and there is only snow with sound (fuzz).

SOURCE: No Picture from Component Input #1 or #2 but do have audio via Surrond Sound

Simplest thing would be that your component cables are not HU'd correctly. Having them reversed would do this.

SOURCE: Don't know which input the matches which device icon on screen

if you look on the back , the inputs are labled, then go into the tv menue and go under device lable and match the input it is plugged into, to the dvd icon

SOURCE: mitsubishi WS-65611 tv channels cannot stop scrolling

Check to make sure the channel down button is not stuck. If it is not the button is probably defective. Mits has had a lot of problems with the buttons.

SOURCE: Single HDMI Input. Need to connect several HDMI components

Number 1 would be to connect the 3 Devices to a Receiver with 3 HDMI Inputs, So this way you get the HDMI Audio as well. 3 in and 1 out to the TV as you know. The other way would be to get a Key Digital HDMI 3 to 1 Switcher. I have used these a lot in the field on installs and they work Great. They also have 4 to 1 if you think you might need more. No programming of the piece you just plug in and setup your TV in the HDMI Menu and your other Devices. If they don't sync AUTO! The Receiver would be Best I feel, Some let you assign 2 different Video and Audio sources at once. Such as Video from a Game and Audio from a CD. Hope this helps out!

SOURCE: After a quick power outage, we lost everything,

On my Dir.TV box is a door in the lower right front. Behind this door is a red button. Press it and turn the box back on if it doesn't come back on by itself. It will go through a reboot cycle of 5 to 10 minutes. That should get the satellite going but I'm not sure about the TV input problem. Do you have a menu button on the TV? If so you should be able to find a way to change the input. If not, find your model number, then Google "TV remote" and you should find sites that will sell you an original remote. They will have a box that you can enter your model # into and tell you your remote number. Then Google that part number and shop for the best price. Good luck.