Substack wants to have its HBO moment. Here are its plans to crack TV.

• Substack wants to be a place where people come to watch TV.
• Cofounder Hamish McKenzie pitched Substack’s vision of interactive, creator-led TV.
• Substack faces stiff competition ranging from free streamers like YouTube to paid ones like Netflix.

“History has shown us that cost-controlled experimentation and expansion is the way forward,” Katz, the strategist, said. “Remaining static in a constantly changing and volatile media ecosystem is not an option.”