IAH - LHR - MME and so change terminals.
BA 0194 is scheduled arrival 07.25 and the departure for MME 08.50 Agent told me system will not allow him to book it as needs to be 2 hours.
Next departure to MME is 19.20 and even NCL is late afternoon (which would still mean a 2 hour train journey for me) So could be home quicker by taking East Coast train.

thx