Philip Roth doesn’t do a lot of bookstore appearances, but he’s hitting 50 at once - via live webcast - on Tuesday.

 One is Left Bank Books, 399 North Euclid (www.left-bank.com). The Roth interview starts at 7 p.m. His new novel “Indignation” also goes on sale Tuesday.

 Now, I’m not sure I want to leave my cushy couch to go to a store to watch a broadcast of an author interview - but then it’s been a long time since I went to a bar or restaurant to watch a sporting event on TV. (I’ll be mighty tempted Tuesday, though, if hot wings and cold beer are offered at the Roth event.)

It’s interesting that some authors are in this much demand - Roth isn’t the first to do this. Children’s authors in particular have been making appearances via satellite, the Web, or however this technology works.

What might be most appealing: the excitement of a new book by a favorite author and meeting other fans.