Haven't heard the promo myself, but someone in 'snipes said it indicated "the year of Blazing Saddles". Interestingly, we just did '74 three weeks ago, and that doesn't happen often these days given how many years are on "the big wheel".
ETA: '74 confirmed. Heard the promo this morning. There was no suggestions thread; I'm wondering if this is a "classic", perhaps (long weekend for AL?).