Glass Cooktop - Black

I followed the directions in the referenced video and also utilized the "butter knife" trick to loosen the top from all the built-up crud. One tip, though - be careful not to pry loose the thin plastic strip around the perimeter that the cooktop sits on. I tore a couple of pieces loose inadvertently; fortunately, after washing, they went back into place. Our stove was purchased in 2013, and there was a lot of built-up crud to deal with. The front rubber gasket was particularly gnarly. The video shows the gasket being soaked and rubbed with straight dishwashing soap, which was a great tip. Had trouble getting the gasket to re-seat at the outer edges of the cooktop - didn't seem to want to stay in place. An expensive fix, but far cheaper than a new stove!

Followed these two videos
https://www.youtube.com/watch?v=U3ydzNNCVW4
https://www.youtube.com/watch?v=SbVUGBHSXNY

Removed two screws underneath the control panel inside the oven door. Lifted the control panel and pulled outward. One side came out very easily the other took a while since the peg holding it in did not want to align with the cutout for a while.

Two screws then need to be removed to take off a bracket holding the rubber front seal in place along the glass. This took the longest due to either original installation or grease buildup or both. Stripped one screw and tried various tool extractors, ended up getting it loose with vice grips in the end.

Once that is removed the glass top should slide forward and lift out. Again due to grease buildup the glass was effectively stuck to the foam padding tape. Broke part of the glass where it had cracked, got the rest detached by sliding a butter knife along underneath all of the edges to loosen.

Installation at that point was easy, slid the new one in and did the earlier steps in reverse.

Overall this would have been a very easy fix in a newer cleaner stove.