This editorial article aims to introduce the virtual special issue (VSI) on the past, present, and future of OTT and live streaming services. This article provides the OTT research trends of the last six and a half years through a word cloud of the keywords of the 262 articles, the keyword network, as well as the coauthor network of the articles. After summarizing the overall research trends, we provide a quick review of the seven articles accepted for the VSI, followed by concluding remarks.

中文翻译：

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OTT 和直播服务：过去、现在和未来

这篇社论文章旨在介绍关于 OTT 和直播服务的过去、现在和未来的虚拟特刊 (VSI)。本文通过262篇文章的关键词词云、关键词网络以及文章的合著者网络，提供了近6年半的OTT研究趋势。在总结了整体研究趋势之后，我们对 VSI 接受的七篇文章进行了快速回顾，然后是结束语。