Here it is, friends, the footage you've been waiting for.
The reveal went exactly according to script, with Mom gushing about the contextually appropriate 'artwork' Mia had hastily painted that morning. She completely missed the new dishwasher. It took a couple heavy-handed hints from Mia and Deb before she caught on. Dad was a little faster on the uptake, but only a little.
Thanks again to everyone's part -- especially Dr. Phil!