CBS has announced season finale air dates for its prime time comedies, drama and unscripted series. Freshman dramas MacGyver and Ransom will wrap their seasons in April, followed by comedies Kevin Can Wait, Superior Donuts, Man With A Plan and The Great Indoors in May. First-year dramas Training Day and Bull also will wrap in late May. Here’s the complete schedule: Friday, April 14 8-9 PM – MACGYVER (1st Season Finale) Saturday, April 15 8-9 PM – RANSOM (1st Season…