Did the salesperson even ask questions about your father's personal situation, risk tolerance, needs in terms of drawing down money and need for appreciation, or just give him a canned pitch he gives to everyone?
If dad has built up good nest egg and most important thing is to preserve capital while drawing down modest amount for living expenses, that is one thing. If he needs to aggressively increase value of portfolio to have sufficient funds to draw down small amount and still have money for many years, that is different situation.
I would agree with others to talk to fee for service financial planner, and contact other major brokerages to see they give you exact same generic advice.
http://www.mutualfundstore.com is another option (he has radio show on Saturdays; overlays his 1.5% management fee (I think it starts at 1.5% and goes down to 1% or 0.75%, I forgot, depending upon total amount of assets they manage for him) over that of underlying mutual funds, but to some weekly handholding and active adjustment of mutual fund portfolio is worth it to some).
I just read post above and it sounds like he overlays 1% management fee over those of underlying mutual funds to choose strategic asset allocation and individual mutual funds. I would think primarily about what types of questions he asked dad, and how well he would customize the strategic asset allocation an individual portfolio of mutual funds for your dad's particular needs and risk tolerance; how often does he update and how does he keep dad informed, over time, and try and educate him so he doesn't get shaken out of market with temporary corrections. 1% may indeed be fair if he knows what he is doing (sounds like capital preservation and / or conservative growth and income), listens to your dad's needs, and just doesn't put dad's age into computerized algorithm that spits out generic portfolio (plus, is portfolio a portfolio of
TD Ameritrade managed mutual funds, or do they really choose from all mutual fund families available).
Ultimately, though, there is no substitute for your father educating himself about basics of mutual fund investing, strategic asset allocation, etc. Quick read for your dad on basic investor behavior that will create wealth over time, irrespective of whom he chooses to manage money:
http://selectedfunds.com/pdf/SFSuccInv4Q09.pdf
If you interview money managers with your dad, just stay quiet and listen if they give you a canned pitch that everyone gets, or if they ask lots of questions about your father's personal situation before recommending specific portfolio customized for your dad. And will they follow up and make adjustments as necessary over time?