TV Zap : Europe :

Frequency and Channel Guides

CSA Frequences TV

Complete list of television transmitters in France. In French.

Radio en TV zenders in Nederland

Television (and radio) transmitters in the Netherlands. In Dutch.

Wolfbane

Current listing of all UK analogue TV transmitters, plus links to both analogue and digital reception predictors.

Television Transmission in Ireland

TV transmitters in Ireland.

MB21

Comprehensive links and information on terrestrial TV (and radio) analogue and digital transmitters in the UK. Includes a great deal of historical data and pictures.

Catalunya - Mapes comarcals de canals de TV

Maps and channel assignments for television transmitters in Catalonia (Spain). In Catalan.

RUV

Television transmitter listing for Iceland (I think). In Icelandic.

Zilionis

Complete list of TV transmitters in Lithuania.