President Barack Obama will deliver his seventh State of the Union address Tuesday night at 9 p.m. ET. While exact details of Obama's speech remain unknown, what we do know is that it will totally mess your TV schedule.

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The speech will be carried on all major networks and cable news channels from 9 to either 10:30 or 11 p.m. ET, depending on the channel. Obama's State of the Union will preempt the following:

ABC: Forever

CBS: NCIS: New Orleans and Person of Interest

Fox: New Girl and The Mindy Project

NBC: Marry Me, About a Boy and Chicago Fire

Repeats of Black-ish and Mike and Molly will air at 10:30/9:30c on ABC and CBS, respectively. The CW, which does not normally carry the State of the Union, will air a new episode of Supernatural at 9/8c as planned.