The TV Cave’s Daily TV Guide: What to Watch on July 12

Sunday nights always deliver some of television's biggest moments, and today is no exception. Whether you're ready to crown the winners of Love Island USA, check in on the latest power plays in House of the Dragon, or see who lands on the chopping block in Big Brother, there's plenty to keep your remote busy.

Streaming fans also have a pair of reality TV premieres to binge before primetime kicks off, while crime dramas, documentaries, and thrillers round out a packed lineup across broadcast, cable, and streaming.

Here's everything worth watching on Sunday, July 12.

Time (ET)	Show	Network/Platform	What to Expect
3:00 AM	Love Is Blind: UK After the Altar	Netflix	The cast reunites after Season 2 to share where life has taken them since leaving the pods, from relationship highs and heartbreaks to surprising updates and unresolved drama.
3:00 AM	Married at First Sight (Season 20 Premiere)	Peacock	Fourteen strangers take a leap of faith as seven new couples marry the moment they meet in the latest season, this time set in Seattle.
8:00 PM	Big Brother	CBS	The mystery surrounding the season's 17th houseguest is finally solved as the first Head of Household begins shaping the game with the opening nominations.
8:00 PM	Patience	PBS	Patience investigates the murder of a Viking scholar while personal struggles threaten to complicate her life outside the case.
8:00 PM	The Real Housewives of Atlanta	Bravo	Emotions run high in Scotland as business concerns and long-buried family issues create tension among the ladies.
8:00 PM	The Salisbury Poisonings: A Spy Next Door	CNN	This documentary revisits the shocking poisoning of Sergei and Yulia Skripal and the international investigation that followed.
8:00 PM	Someone's Always Watching	Lifetime	A dinner party takes a terrifying turn after mysterious audio appears to capture a murder, leaving one woman questioning what's real.
9:00 PM	Grantchester	PBS	A murder tied to Bishop Grey uncovers troubling secrets inside the church, while Geordie finally reaches an important career milestone.
9:00 PM	House of the Dragon	HBO	The aftermath of recent revelations shifts the focus toward Daeron as another chapter unfolds in the Targaryen civil war.
9:00 PM	Love Island USA (Season 8 Finale)	Peacock	After weeks of romance, twists, and dramatic recouplings, one couple walks away as this season's winners.
9:00 PM	The Vampire Lestat	AMC	With the season nearing its end, Lestat and Louis are forced to confront difficult truths that could change everything.
9:00 PM	The Westies (Series Premiere)	MGM+	J.K. Simmons stars in a gritty new crime drama chronicling the rise of New York City's notorious Irish gang during the 1980s. The first two episodes debut tonight.
11:00 PM	Rick and Morty	Adult Swim	Another bizarre adventure awaits as the animated sci-fi comedy closes out the night with its signature off-the-wall humor.

Tonight's TV Highlights

Reality TV fans have a full day ahead. Netflix checks back in with the cast of Love Is Blind: UK After the Altar, while Peacock launches a brand-new season of Married at First Sight. By nightfall, all eyes turn to the Season 8 finale of Love Island USA as viewers finally learn which Islanders take home the grand prize.

Competition lovers also won't want to miss Big Brother, where the game begins to take shape after the identity of the mysterious 17th houseguest is revealed and the first nominations send shockwaves through the house.

Fantasy fans have another can't-miss hour with House of the Dragon, while AMC's The Vampire Lestat heads into its penultimate episode, raising the stakes before next week's finale.

Looking for something completely new? MGM+ premieres The Westies, a crime drama led by J.K. Simmons that dives into the violent world of one of New York City's most infamous gangs.

If documentaries or mysteries are more your speed, PBS delivers fresh episodes of Patience and Grantchester, CNN explores one of the most shocking international espionage cases in recent history, and Lifetime offers a suspense-filled movie premiere with Someone's Always Watching.

No matter what kind of TV you're craving tonight, there's no shortage of great options waiting when the sun goes down.