In a broadcast digital video network, Internet HTML Web page data is formatted to fit within a standard MPEG-2 data packet structure, and multiplexed along with other MPEG-2 digital video signals for transport within a multiple channel digital video system. The method can further include coordinating an exchange of first control information and second control information between the communication device and the at least one device. The slit is formed on a part of a face of the lamp socket. A retractable insertion sheath is provided for covering the transfer needle and the catch needle when the device is inserted into a procedural site.