In general, titles of longer works should be italicized, while titles of shorter works should be in quotation marks. Based on this guideline:
- The television series titled Adventures of Rin-Tin-Tin should be in italics.
- The article in a newspaper titled "Who Is Rin-Tin-Tin?" should be in quotation marks.
- The short story titled "An Ode to Rin-Tin-Tin" should be in quotation marks.
- The country music song titled "Me and Rin-Tin-Tin" should be in quotation marks.
So, the correct item to be in italics is: The television series titled Adventures of Rin-Tin-Tin.