What lighting setup is recommended for filming a presenter in front of a TV screen? i will be filming a presenter in front of a 48" TV with graphics on it. The presenter will be pointing at the graphics at times to explain certain things.

We will be doing this in a tiny studio on a shoestring budget. Do you have any recommendations at all on how to light the presenter? Are there video lights or setups i can use, that will not blend or glare in the tv screen?

We will probably be using a consumer grade video camera and dump the video material into an editing suite afterwards. It's mainly the presenter and the TV what will be in the shot, i'd say a medium close up.
If you can't use green-screen (the ideal), I'd recommend a couple of things. First, use a screen with a matte surface to reduce specular reflections and present more diffuse ones. These are somewhat rarer that glossy ones. 

Second, angle the screen slightly top-forward, to deflect some reflections down and away from the camera. A slight parallax won't be too noticeable. Same goes for a slight off-axis view right-to-left

Third, try a polarizer in front of the taking lens to dampen some reflections.

Last, use cutting flags on all fixtures to minimize the amount of light that actually touches the screen. If you keylight from two directions, you can help avoid hitting the screen. Diffuse fill light is much harder to flag effectively.

Good luck. I'm sure others here will have more suggestions.