Home Box Office says its Sunday night all-star inaugural spec “An American Reunion” averaged a 10.0 rating/14 share in Nielsen HBO homes. The show built to a 12.1/16 in its final quarter hour (9:30-9:45 p.m.), topping its network competition in rating and tying two of the nets in share: NBC (11.8/16), Fox (11 .6/16), ABC (11.3/15) and CBS (9.8/13).

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