PS3 really stupid question

[Goalpost]

Depends what type of output your game uses to the tv. Think of your tv as a device with different input options. Depending on where you plug that device into it...use the button on the tv remote to find it. Remotes can vary how they are labeled. Like Sunset said, it might be an INPUT button. It could be labeled as a SOURCE button. And you might see VIDEO or HDMI on the remote. But they are all the same idea depending on where you connected the device to the tv.

For example. Maybe your cable or satellite box is plugged into HDMI 1. Maybe your DVD is connected to VIDEO 1. Maybe you can connect your game to HDMI 2. Then you use the button/s on your tv remote to move between those devices, which one you want to access.