So, being a bit impatient I went ahead and ordered this:  
https://www.amazon.com/dp/B003L76BJS..._8lEywb7SMWTYM
I'm thinking I'll swap one TV at a time and see how it goes.  If I get channels 4,5,7 and 13 I'll deem phase one successful and add another TV. 
So, on a scale of 1 to 10 what are my chances of success?
Thanks,-jnd