https://nypost.com/2020/12/14/espn-landing-mlb-rights-to-playoff-round-that-doesnt-yet-exist/

ESPN will get to show (https://awfulannouncing.com/espn/espn-reportedly-close-to-getting-new-opening-round-of-mlb-playoffs.html) the first round when MLB expands its playoffs from 10 to likely 14 teams, including a best-of-three first round.

From the second article: (There’s a chance some games air on ABC, as well, which we saw in 2020.)

They should make this happen. I don't know why baseball doesn't insist on over-the-air free TV for their playoff games. Individual clubs throwing everything onto cable for large rights fees is one thing (also a mistake), but at the national level the sport needs to be on the most widely available channels.