I cannot switch my TV mode to video mode. I have a Broksonic CTGV-5463TCT 19" TV that is

Question

I have a Broksonic CTGV-5463TCT 19" TV that is programmed with an RCA universal remote. I hooked up a Cyberhome 300 DVD player and cannot get a menu screen to show up. I have the original remote for this player and the only functions that work are the power on/off and the open/close tray. I don't know how to switch the TV tuner mode to 'aux' or video to play any DVD's.trying to connect/play PS 2 system and/or DVD. Everything seems to be connected correctly but when I change TV to video, it's just a blue screen. I've had this TV for about 9 years and no longer have manual. I do have the remote.