In Stage 1, we heard that watching a video by itself isn’t often helpful.
Instead of just showing teachers a video (which is like talking AT them), show them the video and then pose challenges and encourage conversation.
Teachers feel engaged, free to ask questions, receive feedback and get ideas from other teachers.
I have been using our LMS (we currently use Schoology) to post videos, which many teachers have said are helpful. Depending on the topic, (for example if the PD was on a tech tool they can use) teachers are asked to create content to show that they can successfully use the tool. Beyond, the video, though we are having a conversation using the Discussion boards in Schoology surrounding ideas, classroom implications, suggestions, etc. We have our own PLN where teachers can feel safe to ask questions and share ideas during their own "free-time." I love the USF Technology Matrix because it has videos of teachers in the classroom showing you what integration would look like on the matrix at different levels.