TT
At the time, Thames were looking for a buyer rather than wanting to buy other companies, and Carlton had the advantage of being a publisher rather than a producer, so would save money on production costs and more capital to buy other companies.
There was a thread a while back on the Thames v Carlton history -
http://www.tvforum.co.uk/forum/viewtopic.php?t=12777&postdays=0&postorder=asc&highlight=thames&start=12
There was a thread a while back on the Thames v Carlton history -
http://www.tvforum.co.uk/forum/viewtopic.php?t=12777&postdays=0&postorder=asc&highlight=thames&start=12