http://tvline.com/2017/10/07/agents-of-shield-season-5-premiere-date-fridays/ Does this mean no Once on December 1st?
Yes.
AoS has a two hour premiere that night and then moves to 9pm the following week. My guess is that OUAT airs episode 9 the following week (with AoS moving to 9pm) and then airs its winter finale (episode 10) the next week, Dec 15th
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"He was a lot of things to me" "The only conclusion was love"