Have three on order, have done a lot of reading and some say it is a dual OTA tuner. Some say it locks up receiver. Most of what I have found is 6 months to a year old as threads go. Are both is the dual OTA tuner internal? And to me it looks like the channel 3/4 out put is redundant? Guess what I am looking for is anybody who is using these now and have current software. Any thoughts thanks.