November 4, 2013:
In the run up to the release of Thor: The Dark World Comedy Central aired several short promos with Tom Hiddleston, as Loki, presiding over a classroom of children where he asks about them about superheroes and siblings. Loki of Asgard was no match for Diana of New Jersey!
You can watch a collection of all the promos below.
Tom was also a guest on the E! talk show, Chelsea Lately, hosted by comedienne Chelsea Handler. She's a very raunchy, Howard Stern type interviewer (I doubt any of this would fly in our current age of awareness) so it's not exactly an informative interview but Tom talks about Thor: The Dark World, auditioning for the role of Thor, his time in China, and even shows off his Russian language skills.
For the Comedy Central videos, Tom Hiddleston was wearing his Loki costume from Thor: The Dark World designed by Wendy Partridge.