Automated daily news video downloader with AI subtitle proofreading. Downloads CBS Evening News and BBC News at Ten from YouTube, extracts and proofreads subtitles using DeepSeek, serves videos via HTTP with embedded players. Use when: (1) Setting up automated daily news video downloads, (2) Downloading CBS/BBC news with subtitles, (3) Proofreading subtitle files with AI, (4) Creating local video streaming servers with web players, (5) Managing cron jobs for scheduled video updates.

自动化每日新闻视频下载工具并附AI字幕校对功能。从YouTube下载CBS晚间新闻和BBC十点新闻，提取字幕并使用DeepSeek进行校对，通过内置播放器的HTTP协议提供视频服务。适用场景：(1) 设置自动化每日新闻视频下载，(2) 下载带字幕的CBS或BBC新闻，(3) 使用AI校对字幕文件，(4) 构建带网页播放器的本地视频流媒体服务器，(5) 管理定时视频更新的cron任务