1) How many channels are available?
At the moment, only around one hundred. However, you can easily download more channels as they become available using the built-in updater.

2) Is PC LiveTV Actually Free?
Yes, PC LiveTV is 100% free.

3) Where do these live TV channels come from?
The channels are broadcast online from a variety of different publishers, from all over the world.

Helpful Resources:

• - Streaming Media (Wikipedia)
• - What is Streaming Media? (Nick Smith)

4) What is the quality like?
Most of the channels are noticeably lower quality than what you would expect from your cable company.

However, it varies from station to station and some channels are even in true high definition. Channels from less developed parts of the world tend to be of lower quality.