Integrating AI into a Legacy Broadcasting CMS(Content-uploading Manager System): Architecture Design

How I designed a sermon AI pipeline that bridges a 20-year-old ASP Classic system with modern STT, LLM structuring, and vector search — without touching the legacy core. The Problem I work at a Korean Christian broadcasting company (GOODTV) serving 900,000+ users. Every week, 140 pastors upload sermon MP3s through an internal Windows-based CMS built on ASP Classic — a system that's been running for over two decades. The ask from leadership: "Make it searchable by AI." Specifically, they wanted a