Are you one of those who felt ripped off by the final episode of the most exciting new show of the year? Which did you resent more: that the murderer of Laura Palmer was never revealed, that you can't be sure whether the wife-battering Leo is really dead, that special agent Cooper took three slugs to the stomach in a finale that suggested the shameless ''Who Shot J.R.?'' of Dallas more than the subtle weirdness of Twin Peaks? Well, pour a cup of strong black coffee and join the club.
At the same time, it's a good kind of annoyance, isn't it? How pleasurable it is to really care about a TV series, to the point of (national) obsession.
ABC almost certainly has made a big mistake in scheduling this fall's second season of Peaks for Saturdays at 10 p.m. Quite aside from the fact that a large portion of the show's audience probably will be out on Saturday nights, the move eliminates one of the prime pleasures of Peaks: the opportunity to discuss the latest episode's twists around the office water cooler the next day. A+