Don't think so, Have never seen any 6.4 programming on 8.3, Just the Boring weather graphics with 'live' WDAY radio. Now they could make 8.3 SD 430 and jack The CW to HD 720 for an improvement.it almost sounds like WDAZ is doing a combo weather/local thing (whereas DAY has them separate)
They should have kept the rights to the North Dakota hockey broadcasts for those not served by Midco. Those fans with OTA in the area. (The FANS will still go to the games.)
Put that on 8.3. Maybe 6.4 also. (It just 'makes sense' IMHO) 8.3- it's skipped via TV tuner programming.