Issue #480 Nov 29, 1977 Issue #481 Dec 27, 1977 Issue #482 Jan 31, 1978 Issue #483 Feb 28, 1978 Issue #484 Mar 28, 1978 Issue #485 Apr 25, 1978 Issue #486 May 30, 1978 Issue #487 Jun 27, 1978 Issue #488 Jul 25, 1978 Issue #489 Aug 29, 1978 Issue #490 Sep 26, 1978 Issue #491 Oct 24, 1978 Issue #492 Nov 30, 1978 Issue #493 Dec 26, 1978 Issue #494 Jan 23, 1979 Issue #495 Feb 27, 1979 Issue #496 Mar 20, 1979 Issue #497 Apr 24, 1979 Issue #498 May 22, 1979 Issue #499 Jun 19, 1979