The tag time-machine appears in these 25 comics:

• 34: (8/12/2012) Taurus Time Machine (Tags: mike, chris, time-machine)
• 35: (8/18/2012) Where we're going we still kinda need roads (Tags: mike, chris, time-machine)
• 36: (8/25/2012) A foolproof plan (Tags: mike, chris, cop, time-machine)
• 38: (9/8/2012) Found it (Tags: chris, ashley, mike, time-machine)
• 46: (11/3/2012) This ain't Nevada (Tags: mike, bob, time-machine)
• 47: (11/10/2012) Future Bot (Tags: mike, bob, time-machine)
• 54: (12/29/2012) Happens All the Time (Tags: mike, ashley, time-machine)
• 55: (01/05/2013) How Does This Time Travel Stuff Work, Anyway? (Tags: mike, cop, ashley, time-machine)
• 63: (03/02/2013) We're not in Kansas anymore (Tags: mike, ashley, dale, time-machine)
• 71: (04/27/2013) Call the Clippy Containment Crew (Tags: mike, dale, time-machine)
• 74: (05/18/2013) Debugging (Tags: mike, time-machine, cat)
• 75: (05/25/2013) Unusual weather (Tags: mike, cat, time-machine)
• 76: (06/01/2013) Just trying to be nice (Tags: mike, time-machine, cop)
• 77: (06/08/2013) Voyager (Tags: mike, mikes-mother, cat, time-machine)
• 79: (06/22/2013) Attack Cat (Tags: mike, mikes-mother, cat, mikes-sister, time-machine)
• 80: (06/29/2013) Disappearing Act (Tags: mike, ashley, time-machine)
• 83: (07/20/2013) Outfoxed (Tags: ashley, young-mike, mikes-mother, time-machine)
• 98: (11/02/2013) Stockholm Syndrome (Tags: ashley, mike, time-machine, delorean)
• 99: (11/09/2013) Don't sneak up on me like that! (Tags: ashley, mike, time-machine, delorean, chris)
• 101: (11/23/2013) You're not thinking fourth-dimensionally! (Tags: mike, bob, time-machine)
• 103: (12/07/2013) You can have any color you want as long as it's red (Tags: mike, chris, bob, time-machine)
• 104: (12/14/2013) Classic car (Tags: mike, cop, bob, chris, time-machine)
• 117: (03/15/2014) Will Rogers World Timeport (Tags: ashley, mike, chris, dale, time-machine)
• 118: (03/22/2014) His reach is infinite (Tags: ashley, mike, chris, dale, marty, time-machine)
• 168: (03/07/2015) Remote control (Tags: bob, time-machine)