Prior to playback via MSE and HTML5 video element, the broadcast must be stopped explicitly to free resources.
Sources:
ETSI TS 102 796 V1.6.1, A2.1: Resource management
Broadcast-related applications that wish to use a video/broadcast object and also wish to use
broadband-delivered content need to put the video/broadcast object into the stopped state to release the
media decoders.
Prior to playback via MSE and HTML5 video element, the broadcast must be stopped explicitly to free resources.
Sources: ETSI TS 102 796 V1.6.1, A2.1: Resource management
https://developer.hbbtv.org/tutorials/common-mistakes-to-avoid/