It's Always Sunny in Philadelphia
Dennis Reynolds: An Erotic Life
TV Flash files “Dennis Reynolds: An Erotic Life” as hour 41 of 181 in the TV Flash guide — It's Always Sunny in Philadelphia (2005–present) on FX, season 4, episode 9, aired 2008-10-23, 30 min.
From the desk
How this hour is filed
This leaf is S04E09: listed hour 41 of 181 in the It's Always Sunny in Philadelphia guide, hour 9 of 13 in season 4. It aired 2008-10-23 (30 min). The listed hour before it is “Paddy's Pub: The Worst Bar in Philadelphia” (S04E08). Next is “Sweet Dee Has a Heart Attack” (S04E10).

Catalog log
Broadcast listing — not a TV Flash recap.
Mac and Frank find Dennis' erotic memoir and attempt to profit from it, while Dee and Charlie spend a day in each other's shoes.
Viewer FAQ
Where does Dennis Reynolds: An Erotic Life sit in the It's Always Sunny in Philadelphia guide?
S04E09 is listed hour 41 of 181 — hour 9 of 13 in season 4, season 4 episode 9.
When did It's Always Sunny in Philadelphia S04E09 air?
Dennis Reynolds: An Erotic Life aired 2008-10-23 and is listed at 30 minutes.
Do I have to start at season one of Always Sunny?
You can. You can also jump mid-run: the Gang is fractal terrible, and the format stays viciously inventive for a long haul.
In the series
Why this series still plays
Five terrible people, infinite schemes: Charlie, Dennis, Mac, Dee, and Frank reinvent cruelty without redemption as comfort. Rob McElhenney's FX comedy made trash humans into comic purity and then outlasted almost every live-action sitcom. The anti-Friends on purpose — fractal terrible, still formally inventive.
August 4, 2005, FX drops a dive-bar sitcom that would still be extending its season count while the rest of live-action comedy got windowed, buried, or turned into a nostalgia panel. Rob McElhenney's *It's Always Sunny in Philadelphia* — later FXX — is five terrible people, infinite schemes, the anti-*Friends* on purpose. Charlie Day, Glenn Howerton's Dennis, McElhenney's Mac, Kaitlin Olson's Dee, and **Danny DeVito from season two**, the mid-stream casting masterstroke that completes The Gang. Extreme premises,…
Open the It's Always Sunny in Philadelphia package · Season 4 hub
Filed against
- Charlie Day as Charlie Kelly
Charlie Day played Charlie Kelly on It's Always Sunny in Philadelphia — five terrible people, infinite schemes, Rob McElhenney's FX comedy turning trash humans into comic purity that outlasted almost every live-action sitcom. The…
- Glenn Howerton as Dennis Reynolds
Glenn Howerton's Dennis Reynolds is It's Always Sunny in Philadelphia's golden-boy monster — five terrible people, infinite schemes, cruelty without redemption as comfort. FX trash humans as comic purity. TV Flash files him as 2000s…
- Rob McElhenney as Mac
Rob McElhenney's Mac made It's Always Sunny in Philadelphia a monument to terrible people with perfect timing — five schemes, no redemption as comfort, FX comedy that outlasted almost every live-action sitcom. The anti-Friends on purpose.…
- Kaitlin Olson as Dee Reynolds
Kaitlin Olson’s Dee Reynolds made It’s Always Sunny in Philadelphia the fifth terrible person — Charlie, Dennis, Mac, Dee, and Frank reinventing cruelty without redemption as comfort. Rob McElhenney’s FX comedy as trash humans into comic…
- Danny DeVito as Frank Reynolds
Danny DeVito’s Louie De Palma tyrannized Taxi’s dispatcher booth like a gargoyle with a time card — 1970s catalog James L. Brooks character comedy, then It’s Always Sunny in Philadelphia recasting the growl as Frank Reynolds’s trash-human…