From This site
Reset the remote control and the TV at the same time and this may work. Step 1; First unplug the TV from the wall/surge protector. Wait 5 Min. while your wait here is step 2; You take the batteries out of the remote>then press down on every button 2 Times>replace the batteries in the remote, after the 5min. go ahead and plug the TV in and try it again.

If that doesn't work, you might try asking at the link below.

Good Luck. I know that must be pretty frustrating to have such a nice TV and no remote.

Sue

Here is a link that might be useful: Vizio Support.