“The Four” (8 p.m., Fox): We’ll learn the winner tonight in the season finale, as

“The Four” (8 p.m., Fox): We’ll learn the winner tonight in the season finale, as the final four singers face their last battle in front of a panel of industry experts.

“Olympic Winter Games” (8 p.m., NBC): The games get under way, with two and a half hours of coverage.

TV listings, D3