I got the Roku attached perfectly, but what do I do when I want to watch regular TV? I have a cable box - actually it's AT & T Uverse. Do I have to plug and unplug every time?
It's sounds like you've attached the Roku via the same video connection as your cable box - but you haven't specified if that's composite, component, s-video, etc.
There's likely at least 2 options:
1) If your TV has more than one input, you could connect the cable box to one and the Roku to another
2) If both Roku and the cable box must use the same input to the TV, you can get a video switch (these exist for both analog and digital connections)