Hi,
Welcome!
TV button on your remote can be programmed to operate your set top box / decoder IF your tv has a STB controller. Newer tv's have this (eg. BV10) others have had this as an option (dpending per market). Also if your main 'TV' source would be a computer (e.g. macmini apple tv or any other computer) it should be possible to have that stored under the TV button. Bottom line is that BEO4 concept is that you decide what you want to operate with which button.
Backlit version is (if I recall correct) only with so called 'cinema' BEO4 remotes (very rare) or with some non-BEO aftermarket solution.
Enjoy the forum and please be informed that the forum is looking for some people to test the new forum software beginning of February, maybe this something for you? You can find the information on that via the 'beta testers wanted' topic.
BS9000, Beolab 3000, Beocenter 7002, RL60.2, beo4, BV10