There are tons of free television and radio stations on the air right now, beaming into your home and car, which most people don’t  know exist.  But fear not, I’m about to help you access these stations – FOR FREE! In a recent blogumn, I discussed how you can listen to distant radio stations from other cities.  Some of the stations that I talked about were digital sub-channels only. Sub-channels are additional channels that both TV and radio stations are broadcasting along with their main signals, for free.  These subchannels are often labeled .2 or HD-2 (and up), but these are completely different channels from their main station, so it’s like getting a second channel for free! As technology advanced, and the government stepped in, stations began broadcasting in digital. With an old analog signal, they were only able to send one channel of programming.  Now that stations are broadcasting in digital, which is nothing more than sending 1’s and 0’s over the air, they are able to send several different channels at once. The sad part is most TV and radio stations have done a really bad job implementing and explaining what these channels are.  But fear not – I’ll make it simple!  So, let’s look at TV first. TELEVISION Television stations make most of their money by broadcasting one of the major networks on their main feed.  This is usually the original analog channel number they were assigned when the station began broadcasting a long time ago. In 2010, when stations were forced to turn off their analog signals by our government and go strictly digital the original channel numbers became meaningless.  Stations were reassigned new digital channel numbers, but most continued to use the old number on-air, so viewers would not get confused. Many...