The few shows impacted Monday included NBC's The Office, the syndicated The Ellen DeGeneres Show and CBS' Cane.
Meanwhile, writers are beginning to feel the financial impact from the walkout.
Most studios Monday began sending out suspension letters to scribes with overall deals. Some writers were seen packing up their stuff.
In another strike-related development, ABC has pushed the premiere date of its midseason drama Cashmere Mafia.
The show, originally scheduled to debut at 10 p.m. Nov. 27, following the one-hour finale of Dancing With the Stars, will now be launched after Jan. 1. Sources said that with the uncertainty surrounding the strike, the network opted to hold onto the show until next year and give it a proper launch then.
Dancing will be extended to two hours on Nov. 27. Beginning Dec. 4, ABC will air specials Tuesdays at 9 p.m. where Cashmere was scheduled to air.
Several Office cast members, led by star Steve Carell, didn't show up for work Monday on the hit NBC comedy.
Reps for Carell, who also has a background as a writer, declined comment on whether Carell's action was in support of the strike. It wasn't clear Monday night if Carell would report to work Tuesday.
Co-star Rainn Wilson called in sick, while B.J. Novak and Mindy Kaling, who also are writers on the show, were on strike, as was Office showrunner Greg Daniels, who was spotted on the picket lines.
Without Carell and Wilson, only two scenes of Office were shot Monday, sources said.
Ellen DeGeneres also did not show up Monday to shoot her daytime talker.
"Ellen did not go to work today in support of her writers," publicist Kelly Bush said.
New episodes of Ellen that had been filmed last week were set to air Monday and Tuesday.