Leadtek 2000XP remote.

[mikysee]

What do the buttons that are on red, green, yellow, and blue squares do?

 

[chilled]

The coloured buttons are for use with fast-text services. They are part of teletext.

The services are not available in the US, but only in Europe

Most channels have teletext services which displays selected information. Could include news, sport or stuff related to that particular channel. Fasttext enables the user to jump to certain pages without having to key in the page no.