If I had to guesstimate, since 1990 from the first run on tv thru the taped vhs copies thru the dvds I have watched them 8 or 9 times.
Just wondering how many times other Peaks Freaks have watched 
PS I'm fixing to start another run thru from the pilot to FWWM - cold weather at night is perfect TP viewing environment.
"Harry, I'm going to let you in on a little secret. Every day, once a day, give yourself a present. Don't plan it, don't wait for it, just let it happen. Could be a new shirt at the men's store, a catnap in your office chair, or two cups of good, hot, black coffee. Like this." -Dale Cooper


TWIN PEAKS was aired first time here in Finland in 1991 and since then I've watched it many, many times.