A Sunday strip is a newspaper comic strip format, where comic strips are printed in the Sunday newspaper, usually in a special section called the Sunday comics, and virtually always in color. Some readers called these sections the Sunday funnies. Some newspapers, such as Grit, published Sunday strips in black-and-white, and some (mostly in Canada) print their Sunday strips on Saturday.
Subject matter and genres have ranged from adventure, detective and humor strips to dramatic strips with soap opera situations, such as Mary Worth. A continuity strip employs a narrative in an ongoing storyline. Other strips offer a gag complete in a single episode, such as Little Iodine and Mutt and Jeff.
The Sunday strip is contrasted with the daily comic strip, published Monday through Saturday, usually in black and white. Many comic strips appear both daily and Sunday, in some cases, as with Little Orphan Annie, telling the same story daily and Sunday, in other cases, as with The Phantom, telling one story in the daily and a different story in the Sunday. Some strips, such as Prince Valiant appear only on Sunday. Others, such as Rip Kirby, are daily only and have never appeared on Sunday.
In some cases, such as Buz Sawyer, the Sunday strip is a spin-off, focusing on different characters than the daily.
Early Sunday strips usually filled a full newspaper page, but over decades they shrank in size, becoming smaller and smaller. Currently, no Sunday strips stand alone on a page, and some newspapers crowd as many as eight Sunday strips on a single page. The last full-page Sunday strip was Prince Valiant, which was published as a full page in some newspapers until 1970. Shortly after the full-page Prince Valiant was discontinued, Hal Foster retired from drawing the strip, though he continued to write it for several more years. Manuscript Press published a print of his last Prince Valiant strip in full-page format; this was the last full-page comic strip, though it did not appear in that format in newspapers.