Jon Stewart and Stephen Colbert’s visit to ABC’s “Jimmy Kimmel Live!” attracted the show’s eighth biggest audience ever — 2.52 million viewers. Anticipating your next question — What seven things could be bigger for Kimmel viewers than the opportunity to watch him interview Stewart and Colbert simultaneously (no, Kimmel interviewing his idol David Letterman, the night before, is not one of the seven, having averaged around 2.4 million viewers) – we looked into it.