Darkness and Light: Part 1 - S1-E11
Continuity mistake: When Doc Samson kicks through the cab wall of the vehicle that is transporting the Hulk, he leaves a hole roughly the size of his leg, and the appearance of the damage suggests he kicked through metal. A couple of shots later, the hole is large enough for a person to fit through, and the appearance of the damage suggests it is now broken glass. (00:19:56)
Darkness and Light: Part 1 - S1-E11
Continuity mistake: When Betty is giving Bruce chest compressions, you can see armed soldiers standing in an empty doorway behind her. When the shot changes, a console explodes, revealing the same doorway that the soldiers are suddenly emerging from.
Darkness and Light: Part 1 - S1-E11
Continuity mistake: When the army helicopters are approaching Hulk in the desert, it changes from twilight to nighttime instantly.
Darkness and Light: Part 3 - S1-E13
Continuity mistake: When Banner re-engages Hulk in the desert after Hulk disposes of Talbot, the face guard for the exoskeleton armor Banner is using is missing, but then reappears when Banner launches the armor's right foot at the Hulk's backside. (00:07:38)
Darkness and Light: Part 3 - S1-E13
Continuity mistake: When Ross is threatening Banner with a gun, there is a shot that shows Banner frozen in place and the camera zooms out to show that the shot was reflected from the pupil of Ross' eye. Since it was a reflection, the flower on Banner's robe should have been on the viewer's left since the actual Banner has the flower on the viewer's right. (00:13:32)
Darkness and Light: Part 3 - S1-E13
Continuity mistake: When Ross is getting ready to sabotage the experiment, the equipment on the wall next to the fire extinguisher changes appearance. A white label also appears on the front of the extinguisher. (00:19:07)
Darkness and Light: Part 3 - S1-E13
Continuity mistake: When Doc Samson tackles the new Rick Jones-Hulk hybrid and knocks over the cylinder for the nutrient bath, Banner spills out, and you can see he is wearing shoes. A few moments later when Banner begins to run outside, he is suddenly barefoot. (00:19:44 - 00:20:10)