I've got one of the 4k Samsung TV's. The RVU system still runs over coax, but has an adapter to convert that to ethernet. It's actually just the broadband internet adapter, but instead of putting internet into the DirecTV system, it's running internet (and RVU) out to the tv.
According to Western Union's website, Western Union charges a $5 fee for a standard EFT/ACH delivery and a $22 fee for expedited wire transfer delivery. There is no fee to send a check to the payment recipient.
Today I experienced the worst customer service ever. My Western Union account has been hacked and someone made 2 transactions of 2999$. Hacker changed my phone number and the updated the destination account number. Western Union didn't send any notification email or message when change happen. Now they are not ready to own the problem.