is there any application that can broadcast tv from your computer to my android? (not orb, it does not work with live tv)
Orb does work with live tv with the right capture card, but is not too reliable (if you drop connection, no way to get what you missed). I have had some luck using beyond tv to record in mpeg4 and then streaming the recording a few minutes delayed in orb. The other thing to look at is rock player that can play most video formats and might be able to take a stream from windows media server (free but you need a static ip or dynamic dns).
I use Slingbox solo to get all the content on my cable box on my Droid 1 using the accompanying Slingplayer app. It works great but be forewarned it drains your battery. You can also stream your Slingbox to virtual any internet enabled device, I also use it to stream to my laptop.