Clearly they haven't.
When I see people in this thread say things like "I shouldn't have to change my TV's settings when they've been fine up to now", no I don't believe so lol
Firstly, I'm not making fun of anyone here. I simply gave some detailed and arguably helpful instructions (since a few people here have responded saying they found the setting to fix the problem), and some users who can't find the setting are blaming the developers over their own poor purchase decision. It's like buying the cheapest computer you can find only to discover that it doesn't play X game very well, and then blaming the developers for not providing options for those 'who cannot afford more expensive equipment'.
Secondly, if you can't afford it, then save or learn to save for it. No one is assuming that you are expected to be able to afford purchasing a new TV immediately. Next time, take a look in store, have a look through the settings, research a little or even ask online for advice instead of going off impulse buys - heck if money is that tight for you, you wouldn't want to just buy into something without knowing what you're purchasing outside of its price and brand. Places like Reddit and AVForums exist for that very reason.
Perhaps by the time you finish saving for the TV new content and stability patches will be available for the game (as evident with the recent update), but this overscan problem is a non-issue that affects a very small amount of people that is only unsolvable for those with very old and/or cheap equipment.