420 tv tommy chong dazed and confused 4/20 TV: 'Dazed and Confused,' 'Tommy Chong Presents' and moreIt’s 4/20 — you know what that means. And while we absolutely do not condone any illegal activities, should you be participating in any, here are great ways to pass the time all day. All times Eastern, check your local listings for channel information.

ACMax: “Shaun of the Dead,” 1 p.m., “Fear and Loathing in Las Vegas,” 2:45 p.m.

Comedy Central
: “Police Academy,” 11:30 a.m., “My Cousin Vinny,” 1:30 p.m., “The Dukes of Hazzard,” 4 p.m., “Van Wilder,” 6 p.m., “Grandma’s Boy,” 9:30 p.m.,

Encore: “Grease 2,” 12:00 p.m., “Spaceballs,” 6:20 p.m., “Ghostbusters” and “Ghostbusters II,” 10 p.m. to 1:30 a.m.

ESPN: “X Games” from Foz do Iguacu, Brazil, 11 a.m. to 5 p.m.

Flix: “The Big Lebowski,” 8 p.m., “Wet Hot American Summer,” 10 p.m.

HBO Comedy: “Napolean Dynamite,” 4:55 p.m.

History: “Marijuana: A Chronic History,” 4 p.m.

IFC: “Boogie Nights,” 8 p.m.

MoreMax: “Jaws,” 5:50 p.m.

Showtime: “Tommy Chong Presents Comedy at 420,” 8:30 p.m.

Showtime 2: “Reefer Madness,” 5 p.m.

Starz Comedy: “Dazed and Confused,” 8 p.m., “Smiley Face,” 9:45 p.m.

Syfy: Monster movie marathon, 11 a.m. (“Anaconda 3,” “Anacondas: Trail of Blood,” “Lake Placid 2,” “Lake Placid 3,” then cannibal movies — “Wrong Turn,” “Wrong Turn 5,” Wrong Turn 4,” until 4 a.m.

VH1: “100 Greatest Songs of the ’00s,” 4:30 p.m. to 9:30 p.m., “Stripes,” 1:30 a.m.

Posted by:Andrea Reiher

TV critic by way of law school, Andrea Reiher enjoys everything from highbrow drama to clever comedy to the best reality TV has to offer. Her TV heroes include CJ Cregg, Spencer Hastings, Diane Lockhart, Juliet O'Hara and Buffy Summers. TV words to live by: "I'm a slayer, ask me how."