An analogue TV viewing application that was part of the separately released "Extragear" of the KDE 3.x application suite.
The last official kedtv release version was evidently 0.8.8 , though some distributions list a v0.8.9 , as does kde-apps page. In any regard, its development pretty much ceased once the push towards KDE4 commenced. There is some evidence that a move was initiated to port kdetv over to KDE4  , but that too appears to have come to an end. Further, the mailing list is evidently shutting down for good. 
- LinTV - a potential KDE4 focused replacement for kdetv