I listen to very few podcasts, but the ones I listen to I highly recommend.

I am creating this list over time, take a look at it (it is always a work in progress)

Video:

• Apple Keynotes
• AppAdvise
• WWDC 2010 Session Videos

Audio:

• 
  Entrepreneurial Thought Leaders

This Week In Startups (audio only)

• TED Talks (Audio addition)
• This week in Venture Capital