I bought the TV from Reliance Digital with a 3 year warranty, where they clearly told me in case of any issues I had to reach out to them and they will take it up with Toshiba. So I am relaxed with that respect.Aren't the owners of this TV concerned about Toshiba's after sales service?
As for updates, various forums have said Toshiba will roll out updates in the first quarter , so I would wait till march without too much worry or expectations for the update. Post march if we still don't have the update it will be a cause of concern.
But personally, I'll still be getting an Nvidia shield soon so don't really need Toshiba's updates.I bought this TV just because of its good picture quality at a reasonable price.