Even with “House” and “Bones” on the sidelines, Fox made it four straight weeks to start the season as Tuesday’s demo leader thanks to the fourth game of baseball’s postseason series between the Cleveland Indians and Boston Red Sox. Not having to face the Fox dramas seemed to boost the net’s rivals, meanwhile, as “NCIS” and “The Unit” on CBS and “Reaper” on CW were on the rise.

According to preliminary nationals from Nielsen, the Indians’ 7-3 victory over the Red Sox averaged a 3.7 rating/10 share in adults 18-49 and 12.1 million viewers overall from 8:30 to 11 p.m. on Fox’s affiliates, with the national averages for the game expected to come up a bit. This would make it the highest-rated game of the series, with Game 5 set for primetime on Thursday.

At CBS, “NCIS” (4.1/12 in 18-49, 17.4 million viewers overall) logged its best demo score in 10 months, winning the hour in most key measures and standing as the night’s top program in both adults 25-54 (5.6/15) and total viewers. “The Unit” (3.5/9 in 18-49, 12.3 million viewers overall) also showed growth, rising to its best delivery since February, but new drama “Cane” continues to struggle at 10 (2.2/6 in 18-49, 8.5 million viewers overall), down a tick week to week.

ABC’s opening-hour comedies “Cavemen” (2.7/8 in 18-49, 6.9 million viewers overall) and “Carpoolers” (2.7/7 in 18-49, 7.0 million viewers overall) were in line with their previous week’s performances, while the “Dancing With the Stars” results show at 9 (4.3/11 in 18-49, 17.0 million viewers overall) was up a bit and easily led its timeslot without competition from Fox’s “House.” At 10, “Boston Legal” placed third (2.8/8 in 18-49, 10.2 million viewers overall), on par with the previous week.

NBC got off to a slow start with its 8 o’clock spec “Matt Lauer Presents: Larry Craig” (1.7/5 in 18-49, 5.7 million viewers overall), tying for fourth place with the net’s weakest scores in the timeslot this season. “Biggest Loser” improved but kept the Peacock fourth at 9 (3.0/8 in 18-49, 6.9 million viewers overall), but the net moved up to its customary leadership position at 10 with “Law & Order: Special Victims Unit” (4.8/13 in 18-49, 12.5 million viewers overall).

At CW, “Beauty and the Geek” (1.7/5 in 18-49, 3.5 million viewers overall) was up a tick week to week, and “Reaper” (1.5/4 in 18-49, 3.2 million viewers overall) gained a bit more to match its high in 18-49.

Preliminary 18-49 averages for the night: Fox, 3.6/10; ABC and CBS, 3.3/9; NBC, 3.2/9; CW, 1.6/4; Univision, 1.5/4.

In total viewers: CBS, 12.7 million; Fox, 11.8 million; ABC, 11.4 million; NBC, 8.4 million; Univision, 3.5 million; CW, 3.4 million.