I currently own a 5-year-old Phillips 3576 which still works, but I'm starting to wonder how much longer it will last. I purchased a Magnavox mdr537H from Walmart about a month ago and, after going through the auto channel set up (I did use the 'analog/digital' option), found out that some of the digital channels my cable co sends were not 'found' by the new unit which the older Phillips unit found without any problem. I was even unable to get the unit to recognize these channels and receive them by inputting the channel number manually. I called tech support who hand-held me through the auto channel set up again without success. At first, tech support tried to tell me there was something wrong with my cable signal until I told them that my older machine had no problem receiving these channels, then I was told the tuner was defective and returned the unit to Walmart.
Today, I noticed a review on Walmart.com (dated Nov 4, 2014 by 'GaveUpRecording') where a reviewer complained that this device won't allow the addition of channels above what he called the 'major channel'. He stated that he spoke with tech support was was told this device wouldn't do what he was trying to accomplish. I'm not sure what he meant by 'major channel' but am wondering if this refers to the subchannels that many stations carry in addition to their main brodcast channel because, if my memory is correct, my new unit was able to find the main channel of one of our stations, but not its associated subchannels, in fact, when I entered the subchannel's number into the remote, the unit went to what I think was the associated 'main' channel.
Does anyone know if the newer unit is only capable of picking up a station's main channel and not its associated subchannels or if there is any other reason why the newer model wouldn't be able to pick up all the channels my older one did other than being defective? I'd love to buy a newer one before the old one dies on me, but if it can't pick up all of the channels that I watch there's no point.