You should be using...

Hulu.com - This joint FOX/NBC (and soon WB) venture has many shows and movies online for streaming - free! It has an amazingly clean and simple interface, making it very easy to find and select the television show or movie that you want to watch.

RedLasso - It's in beta testing right now, so you'll have to sign up. But this amazing site is like having a online DVR. It has feeds of most market's major networks - ABC, CBS, FOX, NBC, et al - and some cable networks, too. They keep full hours online for up to a week to watch. But you can create a clip (to embed on your site/blog), and the clips will exist forever. So if you're watching the Food Network and see something that you just have to share with everyone? You can RedLasso it. If you need to see that episode of Supernanny? You can RedLasso it. Best. site. EVER.

LiveNewsCameras.com - If a television station is streaming an event on their national feed, you no longer need to work in a newsroom to be able to see it. You can see it online. There are even national radars, a live camera moderator who will point out breaking news that you can watch, and lots of network's standby is a skycam, which can be fascinating.