The first one is from Alcatel-Lucent titled "Fact vs. Fiction – The Debate on In-Building Architecture Options". It discussed the three architectures (as seen in the picture above) DAS, Distributed Radio Systems (DRS) and Small Cell. Here is the video:
The other webinar (actually 2) is from ThinkSmallCell.
The other older webinar and presentation by ThinkSmallCell that goes more in-depth of these In-building solutions has already been covered in an earlier blog post here.