As long as the smart TV still trusts eMudhra, then yeah. You'll want to super careful and prevent the TV from pulling updates that could revoke that trust.

the word 'trust' is doing lots of work in this sentence.

Possibly. But some manufacturers may not have the full set of roots, use a private authority, or do certificate pinning.

The Emudhra intermediates were cross signed by Sectigo.

I feel like this is one of the blunders that would feel worse if it wasn't so stupid and broad, it's at a point that feels comical.

If the TV isn't older than a few years, if it's not checking CRLs, and if it hasn't yet patched itself.

> if it's not checking CRLs

I would be amazed to see a TV that is checking CRLs and keeps the CRLs up to date.

The lengths they would go to prevent you from snooping at them.

And if it's not using its own trust store, which I wouldn't expect from TVs, but would potentially expect with more competent or security focused electronics.

I just tried with my older Samsung TV and SOME https request content appears to be readable, but not all

LG must be bricking it.