My fiancé and I are having to move the location of our rehearsal dinner. Our rehearsal dinner includes extended family and is about 70 people. We want it to be more of a "welcome party" and informal. Well, our new location is a country club venue where I work part time at and we are now doing a sit down dinner. While it will be a little more formal, I don't plan on it being over the time. My question is, now that we are doing sit down, how long should the rehearsal dinner be?