TV Ratings: 'How to Get Away With Murder' Rises for Finale

The night also saw the launch of NBC's 'Blacklist: Redemption' spinoff.

How to Get Away With Murder wrapped season three on a high note.

The Viola Davis drama rose two-tenths for its two-hour season finale on Thursday, averaging a 1.5 rating among adults 18-49.

A steady Grey's Anatomy (2.0 adults) helped ABC win the night.

Once again, The Big Bang Theory was the top show of the night with a 2.8 rating. The Great Indoors (1.5 adults), Mom (1.4 adults), Life in Pieces (1.2 adults) and Training Day (0.7 adults) were even across the board for CBS.

NBC had an eventful night with the launch of the Blacklist: Redemption spinoff. Airing after the winter finale of the James Spader series (0.9 adults), the offshoot held onto most of its lead-in and opened to a modest 0.8 rating.

Earlier in the night, freshman series Powerless (0.7 adults) fell to a new series low. Superstore (1.1 adults) was even.

First-year drama Riverdale (0.3 adults) also slipped to a series low on The CW, following a steady Supernatural (0.6 adults).

Masterchef Junior (1.2 adults) and My Kitchen Rules (0.7 adults) were both flat for Fox.