Belgium

BRT (later BRTN, later still VRT)
National channel in Flemish.

The devolution in Belgian society along language lines continues with two separate state broadcasters providing 2 services each in their own language.

BRT = Belgium Radio/Television; BRTN = Belgium Radio/Television in Dutch;  VRT = Flemish Radio/Television

RTBF 1 and 2
National channel in French.

The separation is so total that RTBF "went commercial" some years before BRTN even considered it.  This may be to do with the competition - RTBF v TF1 and BRTN v Nederland 1.

The '21' ident is from Tele21, identified by correspondent Nathalie Decker as a previous identity for RTBF2.

RTBF = Radio/Television Belgium in French