From the latest Zondervan academic update:
If you can’t make it to ETS, however, there is now a next-best option. We are sponsoring live webcasts of all plenary speakers, including E. Calvin Beisner, Russell Moore, Richard Bauckham, and Douglas Moo. Visit www.LiveStream.com/ZondervanAcademic to RSVP and get reminders.
Particulars about the plenary sessions, including scheduling, can be found by searching for “plenary session” in the “session information and indexes” program section PDF available via the ETS website.