This just happened to me as well. Definitely a bug.
Everything was fine, then out of the blue, while adding new links to the web.conf all TV links were and still are gone.
After seeing this report it looks like I will first reinstall 1.10. If that does not work I will conclude that we're dealing with a bug in .10 and revert to .04.
Will let you know.
[UPDATE] A PMS 1.10 reinstallation did the trick. Back in business.
Windows XP SP3, Intel Core 2 T5600 1.83 GHz, 1GB
LAN: 1 Gbps + 11N (oodles of throughput), WAN: 5.14/.580 Mbps <consistent
PMS 1.10, VLC web streaming
Video file engines: 1) TSMuxer, 2) MEncoder
Audio file engines: 1) MPlayer Audio, 2) FFmpeg Audio