Many premium services (Netflix, Disney+, BlueTV) occasionally offer trial periods or "first episode free" promotions that allow users to test their high-bitrate streams.
From a webmaster or digital marketing perspective, this query is an example of usage. High-competition keywords like "free porn" or "adult videos" are dominated by major industry players. Smaller, unauthorized sites target specific linguistic niches (like Turkish) and specific desires (like "extra quality") to capture a slice of that traffic.
When encountering sites using this specific phrasing, keep the following in mind: Security Risks