Universal remote PX-RC1 changed my PRIMA TV to...

Question

My kids just stepped on PX-RC1 remote while my PRIMA tv was on. suddenly the screen turned to blue. Now the picture is very unclear and is not watchable. I checked the TV menu and instead of English/spanish, it has somehow changed to English and Chinese. I can switch it back to English but the problem is the screen size has changed and the picture whether from TV or from Aux inputs are not watchable.Can someone please help!