Broadcasting (high-quality, high-reliability, simultaneity). Enriched program for viewers. ・ Ensuring b ackward compatibility. Hybridcast receiver. Broadband communication （ responds to individual viewer request ）. ・ Application execution. Broadcast program. Broadcast Station.
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(high-quality, high-reliability, simultaneity)
Enriched program for viewers
・Ensuring backward compatibility
（responds to individual viewer request）
Additional program-related content
Request, SNS, UGC
・Providing content and functionalities
Shared System clock
Re-synchronization by matching PTS
(streaming video/audio etc.)
at frame-rate accuracy
Disapproval of same time display with broadcast content