The first IPTV show that I watch is Systm. It stars Kevin Rose and Dan Huard. You might remember them from The Screen Savers on the old TechTV. You will notice that many of the shows on this list will feature old TechTV refugees just as my podcast list did. These folks have found a great home on the internet.
They show some really geeky topics that range from building equipment to making cables.
Check it out at www.systm.org.