Every group has a different interview timeline; it all depends on the PI’s schedule.
TM just finished interviews this week. I’m unsure exactly when they made their decision.
CP received a large number of applications, but they should have sent out at least the first round of interview invitations by this week. Usually, newer Media Lab groups receive a large number of applicants.
In the future, before applying, it’s helpful to visit the lab and talk with the PIs to better understand their current projects—not outdated or already finished ones.