it´s quite good, their public channel ČT Sport works very well on 24h basis and show pretty well everything from the most important sports events also they have a lot of domestic sport covering.
it´s a bit worse, our national public broadcaster had also a dedicated 24h per day sport channel RTVS 3, that started the opening day of Beijing 2008 (I remember that very ell) and was excellent, showing a vaste amount of all sports (including pretty well all major events of almost all olympic sports and some in Slovakia quite popuar non-olympic sports like Ball Hockey, futnet etc.., also huge amount of domestic sports leagues of different kind of sports) sadly the channel was removed in 2011.
there some rumors they want to renew it from this year. we´ll see. So far they put the whole sport things on RTVS 2, aiming this year especially on the Ice Hockey World Championships which will be held in Slovakia. but you can always find them covering all major BIG eventslike OG/WC or WCH of Ice Hockey, Football, Biathlon, Alpine Skiing, Canoeing Slalom, Canoeing Sprint or Athletics, + they cover usually all (mainly the home) matches (and eventual SVK matches at major events) of our National Teams in different ball sports (including Tennis DC/FC, Volleyball, Water Polo, Handball or EVEN Basketball - yeah Basketball, I´m not joking) + matches of Ice Hockey National Championship, Footbal league, European cups or even Handball SEHA league are weekly always covered..that´s quite a lot, you´ll say but I still miss the real dedicated national public sport channel
for other sports we still have a lot of other sport channels in our market from all available Eurosports to all Nova Sports, Digi Sport channels or Sport TV etc...