Tommy, this might help you sort Sesame Street's seasons. Though I'm not 100% sure this is right, perhaps other forum members (namely Secret Squirrel) can shed some light on the subject and either clarify or correct my information. My theory is that Sesame Street produces a total number of episodes for each season/year and airs them daily on all five days of the week, rather than the norm for other shows who produce a season's worth of episodes while being assigned only one day of the week. In spite of Season 33 starting in February 2002 and Season 34 on April 7, 2003, Sesame Street usually starts up their season in January or within the actual calendar year pertaining to that particular TV season. Here's a list that might better explain my point.
Season 1: September 1969/1970 (but we know it really began on November 10, 1969)
Season 2: September 1970/1971
Season 3: September 1971/1972
Season 4: September 1972/1973
Season 5: September 1973/1974
Season 6: September 1974/1975
Season 7: September 1975/1976
Season 8: September 1976/1977
Season 9: September 1977/1978
Season 10: September 1978/1979
Season 11: 1979/1980
Season 12: September 1980/1981
Season 13: September 1981/1982
Season 14: September 1982/1983
Season 15: September 1983/1984
Season 16: September 1984/1985
Season 17: September 1985/1986
Season 18: September 1986/1987
Season 19: September 1987/1988
Season 20: September 1988/1989
Season 21: September 1989/1990
Season 22: September 1990/1991
Season 23: September 1991/1992
Season 24: September 1992/1993
Season 25: September 1993/1994
Season 26: September 1994/1995
Season 27: September 1995/1996
Season 28: September 1996/1997
Season 29: September 1997/1998
Season 30: September 1998/1999
Season 31: September 1999/2000
Season 32: September 2000/2001
Season 33: September 2001/2002
Season 34: September 2002/2003.
Again, rembmber that Sesame's seasons usually begin in January of the calendar year but they correspond to that TV season since the SS season doesn't start up until after September of that TV season and finish well before September of the next TV season/year. Hope this makes sense, that it helps, and that you have a good day.