Re: starting a youtube channel (legal implications, financial etc)
The implications? If someone doesn't want you posting their material it will get taken down so just post to your hearts content and hope for the best. Often times, and especially with youtube, content is matched to their providers and chances are any advertisements before a waveform that has been matched to a content provider will be generated to their audiences and revenue made in their name.
In terms of spare change, on youtube, not likely unless you're generating original video content and millions of people are interested in it.