: Prime is now an official NBA partner, exclusively broadcasting several regular-season games and the NBA Play-In Tournament .
For the most reliable and safe experience, fans should use official broadcast partners, which have expanded under the NBA's 2025-26 media deal . Official Streaming Options for 2026 VIPBox Boston Celtics Streaming Online - VIPBox
While VIPBox is a popular site for finding free sports streams, using it to watch the carries significant security and legal risks in 2026 . The platform operates in a legal gray area and is frequently associated with malware risks, phishing, and invasive pop-up ads . : Prime is now an official NBA partner,