Like a spool of custom-made fabric, the acclaimed costume designers from this year’s Emmy eligible shows unraveled a bit of the intensive collaborative process their work requires during “The Art of Costumes” discussion celebrating TV costume design at NBCU’s FYC House in Hollywood.

The conversation — moderated by TheWrap’s Jen Laski — featured Academy Award-nominated “Angelyne” costume designer Danny Glicker. He was joined by “Gaslit” costume supervisor Patricia Peppard and Emmy-nominated “Hacks” costume supervisor Karen Bellamy. Joining virtually on Zoom were “Harlem” costume designer Deirdra Govan, and Matthew Hemesath, the costume designer for “Dr. Death” and “Girls5Eva.”

For a series to run smoothly, costume designers must work in tandem with writers, producers, hair and makeup artists and the rest of the production team toward a singular vision yet maintain their unique perspectives and expertise when crafting how characters — whether fictionalized or based on real-life figures — dress and live authentically.

Glicker recalled pulling more than 700 costumes for Emmy Rossum, who plays the title 1980s billboard icon in “Angelyne,” and an “intense” yet “helpful” pre-costuming process, which required pulling together at least 40 key art pieces recreating headshots and high school yearbook photos. The costume team also designed three different bust lines to coincide with Angelyne’s different eras (“The young era is a little perkier,” Glicker said, drawing laughs from the audience).

“We really had a crash course on what was working, what wasn’t working,” he added. “We would just keep generating all of these looks, but every single thing was…