Ariana Grande and "Pitch Perfect 2's" Hailee Steinfeld are just two of the young performers on the bill for "The 2016 Radio Disney Music Awards." 7 and 9 p.m. Disney Channel
Luke Bryan, Carrie Underwood and Martina McBride are among the artists who'll be bringin' the twang for the 2016 version of the "American Country Countdown Awards." 8 p.m. Fox
Master thespian Ian McKellen plays master detective Sherlock Holmes as a senior citizen in the 2015 mystery "Mr. Holmes." Laura Linney also stars. 8 p.m. Epix
Chris Noth and Lea Michele, "Who...