Is there a place where I can watch SNL live or recorde on the internet, also look at details?

Question Details: I I have a 52 inch plasma panasonic HDTV TV with a built in HDTV tuner, and i only get local channels, and NBC should be one of them, but it says "poor signal quality" is there anything i can do about it? Is there some frequency stuff to change. But i do get fox, cbs, and some other channels in HD. So yeah. Its two Q's