Streaming Guide Sunday, Sept 20: New Releases on Netflix, HBO Max, Paramount+ and More

The Ultimate Sunday Night Streaming Roadmap

Sunday evenings are traditionally reserved for relaxing before the work week begins, but for many, the hardest part of the night is the 'endless scroll.' With streaming libraries shifting monthly, finding a high-quality show or movie can feel like a full-time job. To save you the hassle, we have curated a comprehensive guide to the best new additions and must-watch episodes hitting the major platforms this Sunday, September 20.

Editor's Top Picks: What's Worth Your Time

If you want to skip the research and dive straight into the action, these are the three standout highlights of the weekend's lineup.

1. Lioness Season 3 Finale (Paramount+)

The high-stakes spy thriller Lioness reaches its explosive conclusion this Sunday. Starring Zoe Saldaña as CIA operative Joe McNamara, the series follows the covert program that infiltrates the inner circles of high-value terror targets. This finale is particularly poignant as it is dedicated to the late producer Rajeev Malhotra. While audience scores on Rotten Tomatoes have fluctuated throughout the season, the finale promises the kind of adrenaline-fueled resolution that Taylor Sheridan's productions are known for.

2. Lanterns Season 3, Episode 6 (HBO)

Blending superhero action with a classic buddy-cop dynamic, Lanterns continues to be one of DC's strongest televised efforts. The show explores the generational clash between veteran Hal Jordan (Kyle Chandler) and rookie John Stewart (Aaron Pierre). With a murder mystery that inevitably spirals into a cosmic conflict, the series benefits heavily from the creative vision of Damon Lindelof, the mastermind behind the acclaimed Watchmen. It is a must-watch for those who enjoy character-driven dramas with a sci-fi twist.

3. Youth Premiere (HBO Max)

For those seeking something lighter, Youth is a refreshing romantic comedy from the brilliant Sharon Horgan (the force behind Bad Sisters and Catastrophe). Horgan stars as Alex, a 50-year-old literary agent navigating the complexities of divorce, aging parents, and adult children. Known for writing 'charmingly messy' characters, Horgan delivers a sharp, funny look at mid-life crises that feels both authentic and hilarious.

Complete Streaming Schedule for Sunday, Sept 20

Here is the full breakdown of new content across the leading streaming services:

Netflix

• Cold as Balls: Kevin Hart's unique and spicy riff on the popular Hot Ones format.
• Stop! That! Train! (2026): The latest cinematic addition to the Netflix movie library.

Paramount+

• Lioness: The highly anticipated Season 3 Finale.

HBO Max

• Lanterns: Season 3, Episode 6.
• Youth: Two-episode series premiere.
• President Curtis: Season 1, Episode 9 (airing late night ET).
• Teen Titans Go!: Season 9H.

Peacock

• Saturday Night Live UK: Hosted by Jamie Demetriou with musical guests Royal Blood.
• Sunday Night Baseball: The Season 37 finale.
• The Hooters Murders: Deadly Shift: New true crime content via Oxygen.

Final Verdict: How to Plan Your Night

Whether you are in the mood for a cosmic mystery on HBO, a high-stakes CIA operation on Paramount+, or a witty London-based comedy on HBO Max, this Sunday's lineup offers a diverse range of storytelling. We recommend starting with Youth for a laugh, followed by the Lioness finale for some high-octane tension to close out the weekend.