Yes, in fact there are 5 meetings per week. The trick is that they count the public snoozefest and the Craptower Study as two separate meetings, even though they are in one trip on Sunday morning or afternoon. The Theocraptic Misery "School" and the "Service" Meeting also count as two, even though they are segued in one trip. The Book Study is one hour and counts as one.
That is why the confusion. There are in fact five separate parts, but only three trips to the Kingdumb Hell or someone's home for these meetings. Tuesday and Thursday evenings are most common for the Theocraptic Misery "School" and "Service" Meeting and the Book Study, likely because the best TV shows are on then (of course, the TiVo would solve that problem) and because the best college courses and jobs require working those nights. The cult wants people to abandon those things so they can focus on recruiting.
There is no point in going. The Theocraptic Misery School only teaches people to give talks that are effective in spreading the scam; the "Service" Meeting teaches people what to say to scam people at the doors. It also teaches the latest flipflops that aren't big enough for the Craptower magazines. The Public Snoozefest always gives a segment on why the world is messed up (because people aren't Witlesses) and the "solution" (having everyone that creates value get destroyed because they aren't screeching around in the misery). The Craptower study is where the real hard doctrine gets pushed and is a total waste, since Blondie always has a nice write-up on this forum every Saturday. The Book Study is another waste. You are better off studying in college or watching TV--or working.