when is new big bang theory spinoff

The new Big Bang Theory spinoff, Stuart Fails to Save the Universe , is set to premiere on July 23, 2026 on HBO Max/Max. It’s a 10-episode series, with new episodes rolling out weekly after the premiere.

Quick scoop

The latest coverage says the show is coming soon , but the concrete date currently reported is July 23, 2026.

What it is

The spinoff centers on Stuart Bloom and follows a multiverse-style sci-fi storyline, rather than the original sitcom format. Reports also say several familiar faces from the franchise are returning in some form.

Release details

• Title: Stuart Fails to Save the Universe.

• Premiere date: July 23, 2026.

• Platform: HBO Max / Max.

• Format: 10 episodes, weekly release.

TL;DR

It premieres July 23, 2026.