Television and Home Theater

I have a RCA tv model number F19421.  The v-chip is set on it and my Dad and I don't know how to get it off. I have tried all the basic numbers like 0000-9999.  I don't have the manual, and  I was wondering if there was a master password or something like that.  or some way to disable it.   that would be awesome if you guys could help. thanks Steve     

My Tv is working perfectly fine aside from it flashin to a black screen whenever something bright comes on the screen, for example a hockey rink during a hockey game.  It flashes back and fourth from black to normal until the bright picture is gone.  I checked and it looks perfectly fine in black and white. It's a 1999 Sony Projection TV.  Any suggestions?  Thanks

I can do anything with my RCA remote to my RCA 36" tv except change the channel. When you hit the up or down arrow it blacks the screen just for a second just like it always does when it changes channels but it doesn't change the channel. It goes right back to the same channel. I can change the channel by using the number pad but not the arrows. What in the blanky blanky is going on here?