Alan Thicke on HOW I MET YOUR MOTHER Season 5 (Photos) October 24, 2009 How I Met Your Mother Check out photos of Alan Thicke appearing as himself in the season 5 episode 7 of HOW I MET YOUR MOTHER “Rough Patch” airing Monday, Nov. 9 (8:00-8:30 PM, ET/PT) on the CBS Television Network. Episode Synopsis: HOW I MET YOUR MOTHER Season 5 episode 7 “Rough Patch”- After Barney (Neil Patrick Harris) and Robin (Cobie Smulders) hit a rough patch in their relationship, Lily (Alyson Hannigan) tries to break them up, calling in Alan Thicke for help. Thicke previously guest starred on HOW I MET YOUR MOTHER as Robin’s father in her music video “Sandcastles in the Sand.” Share this:Click to share on Twitter (Opens in new window)Click to share on Facebook (Opens in new window)Click to share on Reddit (Opens in new window)Click to share on Google+ (Opens in new window)Click to share on Tumblr (Opens in new window)Click to share on Pocket (Opens in new window)