Gotham has, unsprisingly, performed very well in live +7-day ratings performance, according to Deadline.
The new Fox drama set a record for l7 lift in adults 18-49 with a 2.7 rating boost. Last year, the record had been set by Marvel's Agents of S.H.I.E.L.D., with a 2.4 boost. Both episodes of The Big Bang Theory that aired during Gotham bested that performance, though, with a 2.6 gain on the first half hour and a 2.4 gain on the second.
That second half hour of TBBT actually did better than the first half hour in the overnight ratings, meaning that the smaller bump may only have accounted for the same people watching.
Arrow and Agents of S.H.I.E.L.D. both routinely got very impressive l7 lifts last year.