  The reactions p\bar{p}/pp -> t\bar{t}H+X represent important channels in the
search for the Standard Model Higgs boson at the Tevatron and the LHC. In the
leading perturbative order the cross sections suffer from severe
(renormalization and factorization) scale uncertainties. The next-to-leading
order QCD corrections stabilize the cross sections considerably. The
calculation of these corrections is briefly reviewed, and a few numerical
results are discussed.
