12308
1997 intro to the Bill Nye episode (#1715)
12297
1996 intro to episode #1707
12296
1996 intro to episode #1696
12288
1995 intro to episode #1686
12287
1995 intro to episode #1681
12274
1994 intro to episode #1675
12271
1994 intro to episode #1671
12267
1993 intro to episode #1666
12266
1993 intro to episode #1664
12265
1992 intro to episode #1657
12218
1992 intro to episode #1647
12217
1991 intro to episode #1642
