want movie sized on my full tv screen..but how?

[dllfb]

I'm new to this so please stay with me....I have discovered that I can watch a movie I downloaded via azereus on my tv from my computer. I am having a problem with setting it, however, so I can watch it on the full screen of the tv. As it plays now, about one third of the screen is black...a stripe on the top and one on the bottom of the movie....I'm watching it through the nero program..... My tv is your basic 32 incher. Someone informed me that if I download this bsplayer program I can size the movie to my screen...could someone please walk me through this process..I'm a remedial learner and am having problems with this.... thanks so much in advance for your time?