tv+ps3

ntsc ps3+pal game=HDTV

ntsc ps3+ntsc/uc game=can run on sdtv

am i right about both of these equations

ntsc divided by uc??

and how does a ps3 with a game equal a TV?

No, your equations are wrong as they're seperate equations.
You can collect 'like' terms to get the following...

Any region(1) PS3 + Any region(2) PS3 game = Any region(1) PS3 + Any region(1) game