Are Sports Collectors Digest and National Lampoon both magazines?
yes
Sports Collectors Digest
Sports Collectors Digest (SCD) is an American advertising weekly paper published at Iola, Wisconsin.
 The magazine provides an avenue through which sellers, traders and avid buyers of sports memorabilia may interact.
National Lampoon (magazine)
National Lampoon was an American humor magazine which ran from 1970 to 1998.
 The magazine started out as a spinoff from the "Harvard Lampoon".
 "National Lampoon" magazine reached its height of popularity and critical acclaim during the late 1970s, when it had a far-reaching effect on American humor and comedy.
 The magazine spawned films, radio, live theatre, various sound recordings, and print products including books.
 Many members of the creative staff from the magazine subsequently went on to contribute creatively to successful media of all types.
National Lampoon, Inc.
National Lampoon, Inc. was incorporated in 1970 to launch the National Lampoon magazine.
 They leveraged that success into radio, film , television, and live stage.
 The Company developed and produced a number of iconic films, including "National Lampoon's Animal House" and the "National Lampoon Vacation" franchise. National Sports Collectors Convention
The National Sports Collectors Convention is the largest, annual trade show held in the United States devoted to sports memorabilia.
 Also known as The National, the convention has been held annually since 1980 when a small handful of sports card collectors convened at a hotel located adjacent to the Los Angeles International Airport.
 The show changes location each year to allow people from all areas of the country to participate.
 The show also changes the autograph signers each year. The Best of National Lampoon No. 1
The Best of National Lampoon No.1 was a humorous American book that was first published in 1971.
 The book was a special issue of "National Lampoon" magazine, so it was sold on newsstands.
 However, it was put out in addition to the regular issues of the magazine.
 The book was a "best-of", an anthology, a compilation of pieces that had already been published in the magazine, pieces that had been created by regular contributors to "National Lampoon". National Lampoon's Movie Madness
National Lampoon's Movie Madness is an American comedy film produced by "National Lampoon" as the second film from the magazine.
 The film was originally produced under the title "National Lampoon Goes to the Movies"; completed in 1981, the film was not released until 1983, and was reedited and retitled as "Movie Madness". The Breast of National Lampoon
"The Breast of National Lampoon: A Collection of Sexual Humor", is an American humor book that was first published in 1972.
 The book was a special issue of "National Lampoon" magazine, so it was sold on newsstands; however, it was put out in addition to the regular issues of the magazine.
 The book is a "best-of", a compilation of pieces that had already been published in the magazine, pieces that had been created by the National Lampoon's regular contributors. The Best of National Lampoon No. 3
The Best of National Lampoon #3 was an American humor book that was published in 1973.
 The book was an anthology which was "special issue" of "National Lampoon" magazine, so it was sold on newsstands, but was put out in addition to the regular issues of the magazine.
 The book is a "best-of", a compilation of pieces that had already been published in the magazine, pieces that had been created by regular contributors to "National Lampoon".
 The pieces were from various 1971 and 1972 (monthly) issues of the magazine. Buy This Box or We'll Shoot This Dog
Buy This Box or We'll Shoot This Dog: The Best of the National Lampoon Radio Hour was a boxed CD set of recordings from the "National Lampoon Radio Hour", which was a spin-off from "National Lampoon" magazine.
 The boxed set of CDs was released on March 26, 1996. National Lampoon's Animal House Book
National Lampoon's Animal House Book was an American humor book that was published in 1978 by "National Lampoon" magazine.
 The book was an illustrated novel based on the hit movie "National Lampoon's Animal House".
 The cover illustration was the illustration for the movie poster, which was by Rick Meyerowitz.
 The novel was put together by Chris Miller and it was published by Twenty First Century Publications, Book Division.