Season 18 aired between 17 Nov 1986 and 03 Dec 1986, 31 episodes.
Episodes
E01
Miles's First Birthday Celebration
17 Nov 1986
E02
Episode 511
E03
Episode 512
E04
Episode 513
E05
Another Cold Day on Sesame Street
21 Nov 1986
E06
Episode 515
E07
Episode 516
E08
Episode 2233
26 Nov 1986
E09
Episode 518
E10
Episode 519
E11
Episode 520
E12
Episode 521
E13
Episode 2238
03 Dec 1986
E14
Episode 523
E15
Episode 524
E16
Episode 525
E17
Episode 526
E18
Episode 527
E19
Episode 528
E20
Episode 529
E21
Episode 530
E22
Episode 531
E23
Episode 532
E24
Episode 533
E25
Episode 534
E26
Episode 535
E27
Episode 536
E28
Episode 537
E29
Episode 538
E30
Episode 239
E31
Elmo's New Doll
E08
Episode 2233
26 Nov 1986
E09
Episode 518
E10
Episode 519
E11
Episode 520
E12
Episode 521
E13
Episode 2238
03 Dec 1986
E14
Episode 523
E15
Episode 524
E16
Episode 525
E17
Episode 526
E18
Episode 527
E19
Episode 528
E20
Episode 529
E21
Episode 530
E22
Episode 531
E23
Episode 532
E24
Episode 533
E25
Episode 534
E26
Episode 535
E27
Episode 536
E28
Episode 537
E29
Episode 538
E30
Episode 239
E31
Elmo's New Doll