Saturday Night Live often benefits the most when visited by past cast members, and this weekend's episode proved no exception. Will Ferrell's January 27th return to Studio 8H gave SNL its best overnight ratings of the season. The episode, which also featured musical guest Chris Stapleton, averaged a 4.9 overnight rating among households. That's up 14 percent from the previous week's episode, and is a slight improvement from the season-high that Larry David brought in back in November.