There is a red shadow behind words and picture, is there an adjustment I can make?

Sounds like you need to do a color convergence. If you still have the owner's manual, it will give great detail on how to do this. The convergence menu is accessed from the video menu on the tv.
The tv has three color picture tubes, red, blue and green. The convergence alignment adjust each tube so that color from each tube overlaps each over to create a white image on the screen. Most tv's only allow you to adjust the blue and red colors.
Convergence should be performed each time the tv is moved and at least once annually.

you need to go to your remote, look up menu. then select "convergence"...this will give you a "crosshairs pattern to align your "guns" ...it has three red, blue, and green.....try not to move the TV around too much....its knocking them out of alignment

Adjust convergence in menu.

Your tv is experiencing convergence problem. if you have tried the perfect focus adjustment from the menu and still not fixed, then the convergence ics need to be replaced. these ics converge the blue and red beams with the green to give a clear picture.

Hope this helps

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you have to go into the menue, and go under video settings, under advanced, then into convergence, when you get the white lines all over the screen, follow the directions and adjust the red so it lines back up, other wise , take the front bottom panel off the tv, look for the 6 little nobs, look at the ones on the left, they should agjust the red, thrn the top one untill the red is focused back in.

Did you use the Automatica Convergence to try and straighten it out? If that does not help, you can manually adjust the convergence.

you need to have a complete cnvergence done on it

You need service. Sounds like the convergence is out of adjustment. As the picture is formed by a tri- gun arrangement (one for each colour), if any of them is not correctly aligned, you will see shadows on any sharp line like text, or blurring on a picture. The shadow or blurring will often be one colour i e. red, blue or green.

Possible "blooming"==red CRT, adjust screen control==qualified tech only.

Sound like a convergence problem that you are describeing. There might be an adjustment that can be made. If it wont adjust then can be one of three boards. first try autoconverging in user menu.