Will I be able to watch my Universal Pictures Home Entertainment Blu-ray 3D™ movies on all 3DTVs? What about my 3D broadcast?

There is no "format war" between the various methods for delivering 3D. Though broadcast 3D and Blu-ray 3D™ utilize different 3D technologies, all new 3D HDTVs should be able to accommodate both, provided you have a Blu-ray 3D™ player for your Blu-ray 3D™ movies, connected with an HDMI cable.