12x1 - Episode 1446

November 24, 1980

Big Bird goes to school

12x2 - Episode 1447

November 25, 1980

12x3 - Episode 1448

November 26, 1980

12x4 - Episode 1449

November 27, 1980

12x5 - Episode 1450

November 28, 1980

12x6 - Episode 1451

December 1, 1980

12x7 - Episode 1452

December 2, 1980

12x8 - Episode 1453

December 3, 1980

12x9 - Episode 1454

December 4, 1980

12x10 - Episode 1455

December 5, 1980

12x11 - Episode 1456

December 8, 1980

12x12 - Episode 1457

December 9, 1980

12x13 - Episode 1458

December 10, 1980

12x14 - Episode 1459

December 11, 1980

12x15 - Episode 1460

December 12, 1980

12x16 - Episode 1461

December 15, 1980

12x18 - Episode 1463

December 17, 1980

12x19 - Episode 1464

December 18, 1980

12x20 - Episode 1465

December 19, 1980

12x21 - Episode 1466

December 22, 1980

12x22 - Episode 1467

December 23, 1980

12x23 - Episode 1468

December 24, 1980

12x24 - Episode 1469

December 25, 1980

12x25 - Episode 1470

December 26, 1980

12x26 - Episode 1471

December 29, 1980

12x27 - Episode 1472

December 30, 1980

12x28 - Episode 1473

December 31, 1980

12x29 - Episode 1474

January 1, 1981

12x30 - Episode 1475

January 2, 1981

12x31 - Episode 1476

January 5, 1981

12x32 - Episode 1477

January 6, 1981

12x33 - Episode 1478

January 7, 1981

12x34 - Episode 1479

January 8, 1981

12x35 - Episode 1480

January 9, 1981

12x36 - Episode 1481

January 12, 1981

12x37 - Episode 1482

January 13, 1981

12x38 - Episode 1483

January 14, 1981

12x39 - Episode 1484

January 15, 1981

12x40 - Episode 1485

January 16, 1981

12x41 - Episode 1486

January 19, 1981

12x42 - Episode 1487

January 20, 1981

12x43 - Episode 1488

January 21, 1981

12x44 - Episode 1489

January 22, 1981

12x45 - Episode 1490

January 23, 1981

12x46 - Episode 1491

January 26, 1981

12x47 - Episode 1492

January 27, 1981

12x48 - Episode 1493

January 28, 1981

12x49 - Episode 1494

January 29, 1981

12x50 - Episode 1495

January 30, 1981

12x51 - Episode 1496

February 2, 1981

12x52 - Episode 1497

February 3, 1981

12x53 - Episode 1498

February 4, 1981

12x54 - Episode 1499

February 5, 1981

12x55 - Episode 1500

February 6, 1981

12x56 - Episode 1501

February 9, 1981

12x57 - Episode 1502

February 10, 1981

12x58 - Episode 1503

February 11, 1981

12x59 - Episode 1504

February 12, 1981

12x60 - Episode 1505

February 13, 1981

12x61 - Episode 1506

February 16, 1981

12x62 - Episode 1507

February 17, 1981

12x63 - Episode 1508

February 18, 1981

12x64 - Episode 1509

February 19, 1981

12x65 - Episode 1510

February 20, 1981

12x66 - Episode 1511

February 23, 1981

12x67 - Episode 1512

February 24, 1981