So I can’t use literal punctuation in an understand statement, it seems. I can’t figure out what the text replacement for a period would be or if that would even work. I’ve tried.
T[dot]V[dot]
T[period]V[period]
T[.]V[.]
That last one is cute.
You can’t do this at all in a straightforward fashion, because Inform interprets a dot in a command as separating two commands that are entered on the same line (as in “s. s. e. e. d”). Either use an after reading the command rule to convert “T.V.” and its spaced-out variants into “TV”, or use Emily Short’s built-in Punctuation Removal extension.