Complex sentence: It goes off the air after its 12:06 a.m. airing of "Jimmy Kimmel Live" and does not show "World News Now", it is also best-known for pre-empting most NBA Countdown shows on Sunday mornings during the NBA season for paid programming.
Split into simpler sentences: It goes off the air after its 12:06 a.m. airing of "Jimmy Kimmel Live" and does not show "World News Now". It is also known for pre-empting most airings of "NBA Countdown" on Sunday mornings during the NBA season in favor of paid programming.