If the answer is “Yes”, you are in luck. Most of the plenary sessions were streamed live and are now available to watch online. For a full list of video recordings, as well as accompanying slides and posters, please refer to this page:
www.technet-21.org/home/about/tc2015
The resources on this page are divided into the following categories:
For more details about the other events that took place, refer to the Conference Guide:
www.technet-21.org/images/TC2015/TC2015_Conference_Guide.pdf
Enjoy!