By 2017, what needs to happen in order to have Thanksgiving have the same cultural significance as Christmas in the United States? I'm talking about Thanksgiving-themed movies, people dressing up like Thanksgiving-related characters, people decorating their houses with....corn and light-up turkeys, Thanksgiving songs possibly derived from older harvest songs playing on the radio, etc.
Maybe the Federal Government tries to push Thanksgiving more as a way to counteract the political instability and fracturing of the 60s and 70s? Maybe the big department stores try to push it as a way to sell more stuff? How can it be done?