If you wan to get started developing device drivers (or user scripts) for Blocks, here's a series of videos that walks you through the process, including a lot of tips and hints ln how to make things work. More information on how to develop device drivers can be found here.
This video walks you through the old, unidirectional driver for the Samsung MDC display control protocol.
The revised, bidirectional driver for the Samsung MDC display control protocol, including support for status changes caused by controlling the display by other means.