The Harman Kardon TC30 model I bought in the UK yesterday has the four colour telext buttons in the same position as the 555 (picture above). I was very relieved, since the image on the website where I bought the remote showed no coloured buttons.

BTW, these buttons are used for lots of things apart from teletext. The Sky satellite service for example often has menus on screen saying things like press Green for personal planner, Red for HD channels, Yellow for delete and do on. In fact teletext is the one thing I do *not* use them for!