New Developer Question(s)

I've got some very basic initial questions. I have plenty of experience developing software on various platforms and had an idea about developing a channel. Can someone help with:

1. I don't own the content, or, the server where the content is located. However, the content is public. Does this preclude me from developing a channel? If not, are there any other requirements
(ie. servers, etc.) I'll need to invest in?

2. If I can go forward with developing my idea, I'm assuming that there is a way to specify multiple videos as part of the content. Will I need to constantly update the list of available content?

Thanks in advance if you can help out.