There used to be "Happy Learning Chinese Studies", which was not very good. "Cultural Interviews" sometimes talks about it.
Many local stations also have programs similar to "Hundred Lectures", such as Anhui's "Xin'an Lecture Hall", but the quality is not too high. There are also "Lun Tao", "Five Star Night Talk", and "Everyone" sometimes interview some cultural scholars who will talk about Chinese studies.
For videos, Zhai Hongshen’s lectures. You can also search for Yu Qiuyu’s explanation at the Youth Song Competition. It’s not bad. The content is not difficult, but the ideas are very valuable. "A Dream in the Garden" by Yu Dan. However, I still recommend that you watch documentaries, which are more objective and authoritative. Search for the types of documentaries you want to watch, such as "Six Hundred Years of Kunqu Opera", "Jiangnan", "Thousand Years of Calligraphy", and you will gain even more!
Hope you are satisfied!