Look for an input or source button on the TV itself. If there isn't one, then you will have to find a universal remote which will have the command. It will be incredibly hard though considering that Emerson TVs use several different manufacturer's codes. So it is unlikely that you will find one that works perfectly.

Please explain what you mean by "video mode". Do you mean how to change inputs? If so, please see your other question.

I meant using the MENU button, but there is no VIDEO MODE when you use MENU button. Looks like I got to wait days without playing Xbox until I buy a new remote... One guy tried to help me, but he used I CAN HAS CHEEZBURGER TALK talk at one help site

Some Older TVs can get the Video Inputs by going below Channel 2.