在英语学习中，动词 appear（出现、登场）常与不同介词搭配，其中最常见的是 appear in 和 appear on。虽然两者都表示“出现”，但使用场景截然不同。
通常用于表示某人或某物出现在 印刷品、影视作品、舞台剧、书籍、杂志、电影等媒介内容内部。
✅ She appeared in the movie Inception.
✅ His name appeared in the newspaper.
✅ The character first appeared in Chapter 3.
多用于表示出现在 电视节目、广播、屏幕、表面、平台等“表面”或“播出媒介”上。
✅ He appeared on a talk show last night.
✅ A message appeared on my computer screen.
✅ Her photo appeared on the cover of the magazine.
in = 内容里（电影、书、剧）｜ on = 表面/播出（电视、屏幕、封面）
❌ 错误：She appeared on the novel.
✅ 正确：She appeared in the novel.
❌ 错误：He appeared in TV.
✅ 正确：He appeared on TV.
请选择正确的介词：
“The actor ______ the latest episode of Stranger Things.”