HBO uses T-VIPS Gateways for Video over IP Link
The TVG430 use JPEG2000 compression to transmit HDTV (and SD) signals over Gigabit Ethernet links in real-time at bitrates in the 50Mbps to 200Mbps range. The gateway can be configured as either an encoder or decoder. Additional features of the system include low delay and ancillary data support.
Applications include professional broadcast contribution, studio-to-studio media exchange, in-house signal distribution and routing, post-production and live event coverage.