Rinpoche doesn't always comply with the schedule, but most of the time he does. This could be the fault of people who post the schedule, for all we know.
The first day is always, unless there's a great exception, introduction to ati yoga teachings in general. So if you cannot watch, you can afford to miss it without damaging your chance of receiving whatever transmission is attached to the webcast. As well as the last day, which is reserved for advice for daily practices and receiving tridlungs for practices. But if it's your first time, you don't want to miss the last day, that's how you'll get the lungs. Otherwise you can't do any practices.
By transmission in schedule they mean transmission for a particular practice. It's no good without direct transmission of dzogchen first. The direct transmission is going to happen in a week, on the 16th of March, 3am GMT. For now you should visit your local dzogchen community and receive detailed instructions on what to do to receive it. My personal advice would be do it quickly, a week is just enough time to learn everything. If there's none in your city, then you can receive explanations online from someone else, you can contact me or others. But try searching online for someone in your city first, I'd help you if I knew Dzogchen Community sites in Thailand, but I don't, and I've found only one person connected to Thailand Community here:http://www.dzogchen.org.au/contact/who.php
For schedule and much more you can subscrube to Norbunet, if you haven't: send a blank email from your account to firstname.lastname@example.org
; or if you have a Google account, go to http://groups.google.com/group/norbunet
and click on the Apply for membership. There are also schedules with dates available on various websites, some more and some less detailed:http://dzogchencommunityuk.org/dzogchen ... 08/94.htmlhttp://www.dzamlinggar.net/schedule/upc ... 14/03/08/-