How would you convert the following .SRT file's contents into plain text stripping out information?

How would you convert the following .SRT file's contents into plain text stripping out the
line number and time information lines? I could use either DOS or UNIX commands.

I have attached a .SRT file with the following contents:

I was hoping to convert the following .SRT file's contents from

6
00:00:27,000 --> 00:00:30,000
and build some simple webpages.

7
00:00:30,000 --> 00:00:33,000
Part of what makes web design and web development so fun

8
00:00:33,000 --> 00:00:37,000
when compared to other forms of software development, is that you can

to revised values as follows:

and build some simple webpages.
Part of what makes web design and web development so fun
when compared to other forms of software development, is that you can
TEST.txt