On 2/21/2016, the Wonderful World of Disney: Disneyland 60 special aired on ABC. While I don't recall hearing any discussion of the technology nor the devices, the 60th Anniversary Ear Hats were everywhere in all of the outdoor performances, as can be seen in the picture to the rignt. All those white dots on the sidelines are MWM hats.
The entire episode is available for streaming online for those with cable subscriptions. There are short clips that don't require a cable subscription of some of the performances on that site but the ones I scanned don't feature the MWM devices.
Here's the MWM highlights. Times are approximate. The replay may or may not include same commercials. You can also try YouTube. I saw various recordings of these over there, too.
performer | song | location | approx time | |
Pentatonix | Be Our Guest | Main Street | opening | |
Elton John | Circle of Life | Castle | 30 min | |
Idina Menzel | Let It Go | World of Color | 57 min | |
Little Big Town | Steve McQueen | Cars Land | 1 hr 30 min | |
Elton John | Wonderful Crazy Night | Castle | 1 hr 55 min |