mpegts: update AVProgram after pmt change
mpegts: clear avprograms only for removed programs
demuxer ffmpeg: handle pmt changes
pvr: fix too early finish of recordings
ffmpeg demuxer: fast channel change
Revert "dvdplayer: Speed-up PVR channel switching (decrease max_analyze_duration)"

This reverts commit 35e370e6cbdfda6ce0895212bd565dd618b42879.