If you prefer your DVR with no strings attached, your choices are pretty limited these days. You can of course roll your own, but admittedly, that isn't for everyone. Channel Master does plan to change that, though, as it's currently accepting pre-orders for its over-the-air DVR with over-the-top features that doesn't require a subscription. The Channel Master TV ($399) should be hitting retailers and homes this week, and since we love DVRs, especially when they're free from commitments, we decided to take it for a spin. Click through to see how it stacks up.Continue reading