Comic Title: Superman #421
Publisher: DC
Cover Date: July 1986
On Sale Date: April 10, 1986 Newsstand Date April 10, 1986
Source: DC Releases, #26

Newsstand Date April 10, 1986
Source: House Ad, Blue Beetle #2, Page 28

Newsstand Date April 11, 1986
Source: Amazing Heroes, #89

Shipping Date March 18, 1986
Source: DC Releases, #26

Shipping Date March 18, 1986
Source: Comics Journal, #106

Copyright Date March 18, 1986
Source: Library of Congress, Copyright Office 1986
DC publication dates beyond April 1981 listed by the LoC
represent shipping dates NOT newsstand sale dates

Shipping Date March 18, 1986
Source: Amazing Heroes, #89

Cover Price: $0.75
Page Count: 44
Editor: Julius Schwartz

Title: "Trapped in... Imp-TV"
Pages: 24

Feature(s):
Superman (of Earth-1)

Writer: Cary Bates
Penciller: Curt Swan
Inker: David Hunt
Letterer: Gaspar Saladino
Colorist: Eugene D'Angelo

Feature Character(s)

• Superman (last appearance in DC Comics Presents #95; next appearance in Booster Gold #6)

Supporting Character(s)

• Lois Lane (last appearance in Superman #419; next appearance in Booster Gold #7)
• Jimmy Olsen (last appearance in Action Comics #579; next appearance in Action Comics #581)
• Perry White (last appearance in Superman #419; next appearance in Action Comics #582)
• Lana Lang (last appearance in Action Comics #578; next appearance in Superman Annual #12)

Villain(s)

• Mr. Mxyzptlk (last appearance in Action Comics #574; next appearance in DC Comics Presents #97)