Current models have six live tuners. All running a buffer for whatever channel is tuned on each. Works fantastically well. There's a "Live TV" button on the

Current models have six live tuners. All running a buffer for whatever channel is tuned on each. Works fantastically well. There's a "Live TV" button on the remote than cycles through them, or you can manually poke through a quick submenu to jump right to one in particular.