Theater to Stream: Festivals, Festivals, Festivals The Under the Radar, Prototype and Exponential festivals are ready to open our minds with experimental work, even if their doors are shut. Alexi Murdoch in “Wide Slumber for Lepidopterists,” part of the Prototype Festival.Credit...Pierre-Alain Giraud Set dates for previews, openings and closings. Fall and spring seasons. Heck: turning up somewhere on time! Until the pandemic occurred in 2020, many of us perhaps did not realize how much theater relies on appointments. Now that most of them have vanished, with theater — and time itself — becoming somewhat amorphous, it’s comforting to see that the January festivals are still happening.