The CBS drama matches its premiere haul, while ABC's comedy loses nearly a third of its own — and John Stamos and Rob Lowe are a modest draw on Fox.

Two of the fall season's lone comedies made their way onto the schedule Tuesday night. After a week-plus of series premieres, all but two of them dramas, Fox launched its new mini-sitcom block of Grandfathered and The Grinder.

Tuesday has been tough going for half-hours, though ABC is starting to see some success, and this latest stab proved that the latest are at least evenly matched out of the gate. At 8 p.m., Grandfathered opened to a 1.5 rating among adults 18-49 and 5.3 million viewers at 8 p.m., while lead-out The Grinder nabbed a 1.5 rating in the key demo and 4.9 million viewers.

Both broad comedies, their star power is largely male — respective vehicles for TV veterans John Stamos and Rob Lowe. Hardly anything to brag about, the hour is at least in better shape than it was last fall with reality show Utopia. The new lead-in kept Scream Queens at a relative status quo. The younger-skewing horror-dramedy, which saw substantial growth after last week's mild live-plus-same day debut, was off three-tenths of a point from its premiere for a 1.4 rating in the key demo during its second outing.

NBC enjoyed an automatic win thanks to a slightly boosted episode of The Voice, averaging a 3.6 rating with adults 18-49, and another 10 p.m. outing for Best Time Ever. The Neil Patrick Harris variety hour, which was originally due to shift to 8 p.m. this week, was a steady 2.0 in the key demo.

After episodes of NCIS (2.1 adults) and NCIS: New Orleans (1.7 adults), the former off four-tenths of a point from last week, the second episode of Limitless took a 1.9 rating with adults 18-49. That's the same as its premiere score and comes after an initial time-shifting boost of 53 percent.

In its second outing, The Muppets pulled a 2.0 rating in the key demo. That's off nearly a full point from the premiere. Fresh Off the Boat (1.7 adults) was much more stable, down just two-tenths of a point, while Agents of SHIELD returned to a 1.7 rating with adults 18-49.

