Nuke TV Dinner and then renuke it 3 hours later? I need to feed 10 people a Hungry Man TV Dinner each (please don't ask why--it's too long a story) and I have only 1 microwave oven. I need everyone to eat pretty much at the same time, but this is not possible since it will take 8 minutes for each TV Dinner to heat up. So, my solution is to to spend 80 minutes heating all the frozen meals, and leaving it for three to four hours until mealtime comes. My question is: Would reheating an already heated TV dinner alter the taste and texture (like get dry and hard)?
I would try pre thawing them all so they don't take so long to nuke when the time comes. So maybe defrost them in the fridge a few hours before so you aren't microwaving from frozen. And just stack them in the oven to stay warm while you nuke the rest.

The crazy part of me would disassemble the meals. 
1: all veg in a pot. 
2: all mash potato in a pot.
3: all meats on an oven tray
4: heat it all up on the stove and oven
5: re assemble all meals onto clean trays or clean plates.

But I'm kinda crazy. And it might not be easy if there is gravy involved.

Also if you haven't already purchased said meals why not just get a bag of frozen veg, a box of instant mash potato and a frugally priced meat option of your choice to just make dinner for all at once. (But maybe not an option for you)

That's all my ideas :) good luck!