The worst-kept secret in comics is that it's become a largely unrestricted format tackling adult themes. Thus, doing comics justice on TV and in film may sometimes require pushing limits, as AMC Networks does with the horror adaptation The Walking Dead. Netflix (NASDAQ:NFLX) should do the same in bringing four of Marvel's darker characters to its members, Fool contributor Tim Beyers says in the following video.

In Daredevil, Iron Fist, Jessica Jones, and Luke Cage -- all working in the seedy parts of Hell's Kitchen, New York City -- Netflix has a group that's already dealing with the worst sorts of criminals operating in the darkest places. Cage, for example, is a former crook who received his superhuman gifts after enduring a series of experiments while in prison. Why not show the horror that led to Cage's rebirth?

Consider, too, that some viewers take to streamed entertainment because it lacks boundaries. House of Cards and Orange Is the New Black offered not only interesting characters but also a racy backdrop and vulgar soundtrack. HBO profits from the same formula; so does Showtime. Netflix needn't take its Marvel shows to the same extreme; just hold back for the right reasons. Make sure each character's darkness is fully visible to keep the storylines relatable and viewers coming back for more, Tim says.

Do you agree? Will you plan to watch Netflix's live action Marvel shows when they begin airing in 2015? Please watch the video to get Tim's full take and then leave a comment to let us know where you stand.