table arrangements -- viewing vs printing

I have four pieces of information I want to display -- each is variable
number of lines. For viewing, I want it to be a long, narrow display so
that you only need to scroll down to see everything. So it will be a table
with 4 rows.

When printing though, I want it to be shorter so that everything will
usually fit on one page. For that, I need rows 2 and 3 to be side by side.

The equavalent of what I want is
viewing
<table><tr><td>stuff1</td></tr><tr><td>stuff2</td></tr><tr><td>stuff3</td></
tr><tr><td>stuff4</td></tr></table>

printing
<table><tr><td>stuff1</td></tr><tr><td>stuff2></td><td>stuff3</td></tr><tr><
td>stuff4</td></tr></table>


I've used media type on CSS to make printed output look different from
displayed output but for the life of me, I cannot figure out how I can get
this to print side by side when printing. Anyone have any ideas?

Thanks,
Greg