Sony releases PS4 v1.72 and PS3 v4.60 software updates
How To: Update your PS3/PS4 with a USB Flash Drive - YouTube
Spotify launches today on PS4 and PS3 with PlayStation Music (update) - Polygon
PS4 backwards compatibility: Can You Play PS1, PS2, and PS3 Games on PS4?
PS5 Backwards Compatibility: Can You Play PS3, PS2, and PS1 Games on PlayStation 5? - Push Square
Can you play PS4 games on a PS3 console? - Quora
Sony: PS3 and PS4 cross-play is 'technically possible' (update) - Polygon
Can you play PS3 games on PS4? PlayStation 4 backwards compatibility explained
PS5 backwards compatibility will cover all PS2, PS3, and PS4 games according to Turkish retailer - NotebookCheck.net News
PS5 console design evolution: Is the PlayStation 5 design the best yet from Sony? History of PlayStation console designs, from the PS1 to the PS5 via PS2, PS3 and PS4 - Stealth Optional
Can You Play PS3 Games On PS4? - PlayStation Universe
Sony PS4 vs PS3 | Trusted Reviews
How to Jailbreak a PS3 (with Pictures) - wikiHow
I feel like the PS3 gets more updates than the PS4. : r/PS3