TV Top Chef - Season 4 Episode 8 : Common Threads Top Chef - Season 4 Episode 8 : Common Threads 6.738/10 by 63 users The microwaves are back, and this time the contestants are to make a healthy meal using a single main ingredient. Chef Art Smith, owner of Table 52 in Chicago performs guest judge duties. Details Casts Posters Images Title Top Chef - Season 4 Episode 8 : Common Threads Alternative Titles First Air Date 2006-03-08 Last Air Date 2025-06-05 Number of Episodes 328 Number of Seasons 22 Genres Reality, Networks Bravo, Casts Tom Colicchio, Gail Simmons, Kristen Kish Plot Keywords , Self - Head Judge Tom Colicchio Self - Judge Gail Simmons Self - Host Kristen Kish Episodes List Top Chef Season 4 :Episode 1 Anything You Can Cook I Can Cook Better Anything You Can Cook I Can Cook Better 2008-03-12 An American reality competition show in which chefs compete against each other in culinary challenges and are judged by a panel of professional chefs... Top Chef Season 4 :Episode 2 Zoo Food Zoo Food 2008-03-19 An American reality competition show in which chefs compete against each other in culinary challenges and are judged by a panel of professional chefs... Top Chef Season 4 :Episode 3 Block Party Block Party 2008-03-26 An American reality competition show in which chefs compete against each other in culinary challenges and are judged by a panel of professional chefs... Top Chef Season 4 :Episode 4 Film Food Film Food 2008-04-02 An American reality competition show in which chefs compete against each other in culinary challenges and are judged by a panel of professional chefs... Top Chef Season 4 :Episode 5 The Elements The Elements 2008-04-09 An American reality competition show in which chefs compete against each other in culinary challenges and are judged by a panel of professional chefs... Top Chef Season 4 :Episode 6 Tailgating Tailgating 2008-04-16 An American reality competition show in which chefs compete against each other in culinary challenges and are judged by a panel of professional chefs... Top Chef Season 4 :Episode 7 Improv Improv 2008-04-23 An American reality competition show in which chefs compete against each other in culinary challenges and are judged by a panel of professional chefs... Top Chef Season 4 :Episode 8 Common Threads Common Threads 2008-04-30 An American reality competition show in which chefs compete against each other in culinary challenges and are judged by a panel of professional chefs... Top Chef Season 4 :Episode 9 Wedding Wars Wedding Wars 2008-05-07 An American reality competition show in which chefs compete against each other in culinary challenges and are judged by a panel of professional chefs... Top Chef Season 4 :Episode 10 Serve and Protect Serve and Protect 2008-05-14 An American reality competition show in which chefs compete against each other in culinary challenges and are judged by a panel of professional chefs... Top Chef Season 4 :Episode 11 Restaurant Wars Restaurant Wars 2008-05-21 An American reality competition show in which chefs compete against each other in culinary challenges and are judged by a panel of professional chefs... Top Chef Season 4 :Episode 12 High Steaks High Steaks 2008-05-28 An American reality competition show in which chefs compete against each other in culinary challenges and are judged by a panel of professional chefs... Top Chef Season 4 :Episode 13 Puerto Rico Puerto Rico 2008-06-04 An American reality competition show in which chefs compete against each other in culinary challenges and are judged by a panel of professional chefs... Top Chef Season 4 :Episode 14 Finale Finale 2008-06-11 An American reality competition show in which chefs compete against each other in culinary challenges and are judged by a panel of professional chefs... Top Chef Season 4 :Episode 15 Reunion Reunion 2008-06-18 An American reality competition show in which chefs compete against each other in culinary challenges and are judged by a panel of professional chefs...