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.
How much money can I send with Western Union? How do I request a money order refund? When will my receiver get the money? How do I cancel a money transfer? How do I send money? Can I change the name on a money transfer?