The pair stole the show at last year's (08) ceremony, scooping the top male and female honours in the comedy series categories, and hoped to repeat their success after landing a whopping 22 nods this year (09).
And Baldwin was delighted after he was declared the winner for the second time, accepting the trophy over Brothers & Sisters favourite Rob Lowe.
Taking the stage, the star joked, "I'll be honest with you. I'd trade this to look like him."
But United States Of Tara's Toni Collette was later named Outstanding Lead Actress in a Comedy Series, depriving 30 Rock creator Fey of her second consecutive award in the category.
Collette beamed: "Wow, this is insanely confronting."
Fey redeemed herself moments later as she graced the stage to acknowledge her Emmy for Outstanding Guest Actress on hit sketch show Saturday Night Live. That win was first announced at the Creative Arts Primetime Emmys ceremony last week (12Sep09).
She and her co-stars Baldwin and Tracy Morgan still have a chance to compete for Emmy gold in categories including the coveted category Outstanding Comedy Series, which they won in 2008.
The winners of the 61st Annual Primetime Emmy Awards thus far are as follows:
Outstanding Supporting Actor in a Comedy Series: Jon Cryer - Two And A Half Men
Outstanding Supporting Actress in a Comedy Series: Kristin Chenoweth - Pushing Daisies
Outstanding Writing for a Variety, Music or Comedy Program: The Daily Show With Jon Stewart
Outstanding Lead Actress in a Miniseries or Movie: Jessica Lange - Grey Gardens
Outstanding Variety, Music or Comedy Series: American Idol
Outstanding Director in a Comedy Series: Jeff Blitz - The Office
Outstanding Writing for a Comedy Series: Matt Hubbard - 30 Rock, The Reunion
Outstanding Made for Television Movie: Grey Gardens
Outstanding Supporting Actor in a Miniseries or Movie: Ken Howard - Grey Gardens
Outstanding Directing for a Miniseries, Movie or a Dramatic Series: Dearbhla Walsh - Little Dorrit
Outstanding Writing for a Miniseries, Movie or a Dramatic Special: Andrew Davies - Little Dorrit
Outstanding Supporting Actress in a Miniseries or a Movie: Shohreh Aghdashloo - House of Saddam
Outstanding Reality-TV Competition: The Amazing Race
Outstanding Miniseries: Little Dorrit
Outstanding Lead Actor in a Miniseries or a Movie: Brendan Gleeson - Into The Storm
Outstanding Lead Actor in a Comedy Series: Alec Baldwin - 30 Rock
Outstanding Lead Actress in a Comedy Series: Toni Collette - United States Of Tara
Outstanding Host for a Reality Competition Show: Jeff Probst - Survivor