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Your TV is exactly as future proof as it needs to be by having HDMI / SCART / RCA / whatever AV inputs - yes it would be nice if one could simply upgrade just the tuner bit indefinitely by swapping something out (as long as VPUs are a thing, this is NOT going to be a software update) but in the era of $25 upgrades to a new HDMI stick or Orange Pi that supports $New_Thing this is a complete non-issue.