What To Watch Sunday: Best Medicine Debuts, When Calls The Heart Returns, Critics Choice Awards, And More

Every day, TVLine's What to Watch column spotlights new and returning English-language shows (and select movies) premiering or airing fresh episodes across broadcast, cable and streaming — organized below by release time and alphabetically within each slot.

What to Watch Sunday: Josh Charles stars in "Best Medicine," Chelsea Handler presides over the Critics Choice Awards, and "When Calls the Heart" is back for Season 13.

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January 4, 2026

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