Multicast TV diagnostic

Target: Samsung UA49N5300 (2018). Run this page on the TV itself.

UNKNOWN — waiting for JavaScript.

UNKNOWN — waiting for loopback evidence.

A moving counter here is the received video.

Muted video only. Audio autoplay is untested.

Local video loopbackUNKNOWN
WebRTC APIsUNKNOWN
H.264 advertisementUNKNOWN
HTML5 videoUNKNOWN
Live stream attachmentUNKNOWN
Generated test sourceUNKNOWN
Secure contextUNKNOWN
Muted startup autoplayUNKNOWN
FullscreenUNKNOWN

PASS applies only to the named check. H.264 missing from WebRTC SDP does not establish whether the TV has an H.264 hardware decoder. Loopback may use another codec.

Results stay on your devices. Report QR links carry results in a URL fragment. No camera, microphone, analytics, external signaling, STUN or TURN servers.