You can capture packets coming to Windows Media Player using WM Recorder in the PRO mode or freeware WebVideoCap.

If you want to download TV shows/episodes or movies faster than in Real Time, you may use streaming video ripping software supporting Windows Media streams. I had no any problem downloading from eTVnet.ca with WM Recorder in the ADA mode.

While recording with WM Recorder in the ADA mode I've noticed that eTVnet.ca doesn't allow you to watch/record 2 or more streams simultaneously, so you should stop watching your stream quickly after starting recording it. And you can't download 2 or more video streams from this web-site simultaneously.