problems with a 1994 magnavox tv vcr combo

[browneyes47us]

I ve got this 1994 tv/vcr combo and i cant make it work ive got a universal remote and when i code search it it turns the tv off and when i turn it back on it comes up with a picture for a sec and then it goes to blue screen and i cant get the remote buttons to change channels or anything but they do light up.Ive chaned batteries in remote and changed remotes but its the same thing ive been trying for 2 days and cant get the blue screen to go away so now what do i do