Brothers will be brothers.
In a clip from “The Timeline: Peyton Manning’s Summer School,” as Peyton and Eli Manning sit with Duke coach David Cutcliffe, the former Broncos quarterback becomes irritated by his younger brother eating potato chips.
“You’re killing me with that crunchin’,” Peyton tells Eli before taking away the bag of chips.
“The Timeline” airs at 9 p.m. Sunday on NBC. The episode focuses on Manning’s record-breaking 2013 season with the Broncos.