How to do the TM symbol in HTML

The following is an image depicting the TM symbol as it is normally used, subscripted at the end of the trademark word:

You can render the TM symbol in HTML with the following entities:

™
™

Please note as mentioned in the first paragaph that these are not supported by the HTML specification. They should render correctly across browsers and operating systems but there is no guarantee.

And just for the sake of reference, these are the entities for the copyright © symbol:

©
©

and for the registered trademark ® symbol:

®
®