How to get to the "input" screen on a magnavox tv?

I am trying to play my Wii and I have no idea what on I should press on the remote to get there. Here is the kind of t.v. and remote I have>>> a href="http://www.google.com/imgres?imgurl=http://www.reiano.com/images/IGP/IGP-Magnavox.jpg&imgrefurl=http://www.reiano.com/IGP-REWARDS.htm&usg=__01_JocXtoiGUw1lBrdeEeIUrGI0=&h=338&w=400&sz=26&hl=en&start=0&zoom=1&tbnid=sPh-NDognCNpzM:&tbnh=116&tbn" rel="nofollow"http://www.google.com/imgres?imgurl=http…/a