While old-school .avi files were common years ago, most modern platforms use .mp4 or .mkv for better compression and quality. If you are downloading for offline viewing, ensure you are using a reputable site to avoid malware.
Check local Vietnamese entertainment apps for the most stable and high-bitrate versions of the show. Download Lai Mot Lan Nua 082 avi
You can find Episode 82 (Server Thuyết Minh) available for free streaming. While old-school