8 P.m. (DISCOVERY)
Custom-made robots face off in metal-crunching combat in a new episode of this series. The show features competitors who design and build remote-controlled robots to fight in a special arena known as the Battlebox.
10 p.m. (NBC)
Correspondents bring viewers fascinating human-interest stories, compelling documentaries and hard-hitting investigations in this news magazine. The award-winning series is the longest-running prime-time program on NBC.