How I Met Your Mother
The Rough Patch
S5 E7:
Barney and Robin get into a relationship rut and their personalities change so much that Barney even donates his porn collection to Ted. Ted, Lily and Marshall try to break Robin and Barney up before they change even further but their efforts are thwarted by a proposal of marriage. Will Barney and Robin defy their friends and get married?
Starring
Alan Thicke, April Bowlby, Whit Hertford