TechRepublic and its sister site ZDNet are jointly launching a new podcast called “The Big Question.” Each week we’ll do a deep dive on one of the hottest issues in the technology world. We’ll be tackling one big question a week. While other podcasts recap the news, this one offers valuable analysis on some of the most important topics in tech.

I’ll be co-hosting the podcast with ZDNet Editor in Chief Larry Dignan, and each week we’ll also be bringing in a guest to join the discussion. You’ll be hearing from a lot of the editors and bloggers from both TechRepublic and ZDNet, and we’ll be bringing in other technology thought leaders as well.

Each episode will be about the time of the average U.S. commute: 20-25 minutes. If you give us just one leg of your commute every week, we’ll make you smarter about one important topic in tech.

The first episode will publish on Wednesday, September 30. Each week I will post the episode here in the Tech Sanity Check blog and Larry will post it in ZDNet’s Between the Lines blog. We’ll also make an MP3 file of each episode available for free download and we’ll publish an RSS feed.

Over the next few weeks we’ll also be making the show available through iTunes and the Zune Marketplace.

I hope you’ll join us. It’s going to be fun.

UPDATE: Here are the links to subscribe: