Still on L612 on both my 622s here, and neither of my 622s have IAL. Both 622s are set to update at 2am MT, so is this the issue? I've had L612 on one 622 for over three weeks, and for over two weeks on the other 622.
It finally showed up on of my 722s on Friday with about 10 other 501 channels. My other 722 still has only 1 channel.